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 Total number of questions : 20.
 Time alloted : 30 minutes.
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1. 


Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : General Principles Discuss about this problem : Discuss in Forum 
2.  Express the Force F_{2} in Cartesian vector form. 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Force Vectors Discuss about this problem : Discuss in Forum 
3.  Determine the tension developed in cables OD and OB and the strut OC, required to support the 500lb crate. The spring OA has an unstretched length of 0.2 ft and a stiffness of k_{OA} = 350lb/ft. The force in the strut acts along the axis of the strut. 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Equilibrium of a Particle Discuss about this problem : Discuss in Forum 
4.  Replace the force at A by an equivalent force and couple moment at P. Express the results on Cartesian vector form. 

Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Force System Resultants Discuss about this problem : Discuss in Forum 
5.  Replace the force F, having a magnitude of F = 40 lb and acting at B, by an equivalent force and couple moment at A. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Force System Resultants Discuss about this problem : Discuss in Forum 
6.  The oil rig is supported on the trailer by the pin or axle at A and the frame at B. If the rig has a weight of 115,000 lb and the center of gravity at G, determine the force F that must de developed along the hydraulic cylinder CD in order to start lifting the rig (slowly) off B toward the vertical. Also compute the horizontal and vertical components of reaction at the pin A. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Equilibrium of a Rigid Body Discuss about this problem : Discuss in Forum 
7.  Determine the internal axial force, shear force, and moment at point F of the frame. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Internal Forces Discuss about this problem : Discuss in Forum 
8.  The cylindrical cam C is held fixed while the rod AB and bearings E and F rotate about the vertical axis of the cam at a constant rate of _{} = 4 rad/s. If the rod is free to slide through the bearings, determine the magnitudes of the velocity and acceleration of the guide D on the rod as a function of _{}. The guide follows the groove in the cam, and the groove is defined by the equations r = 0.25 ft and z = (0.25 cos _{}) ft. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Kinematics of Particle (KOP) Discuss about this problem : Discuss in Forum 
9.  A passenger in the automobile B observes the motion of the train car . At the instant shown, the train has a speed of 18 m/s and is reducing its speed at a rate of 1.5 m/s^{2}. The automobile is accelerating at 2 m/s^{2} and has a speed of 25 m/s. Determine the velocity and acceleration of A with respect to B. The train is moving along a curve of radius 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : Kinematics of Particle (KOP) Discuss about this problem : Discuss in Forum 
10.  A car, initially at rest, moves along a straight road with constant acceleration such that it attains a velocity of 60 ft/s when s = 150 ft. Then after being subjected to another constant acceleration, it attains a final velocity of 100 ft/s when s = 325 ft. Determine the average velocity and average acceleration of the car for the entire 325ft displacement. 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Kinematics of Particle (KOP) Discuss about this problem : Discuss in Forum 
11. 
A ball thrown vertically upward from the top of a building with an initial velocity of v_{A} = 35 ft/s. Determine (a) how high above the top of the building the ball will go before it stops at B, (b) the time t_{AB} it takes to reach its maximum height, and (c) the total time t_{AC} needed for it to reach the ground at C from the instant it is released. 

Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Kinematics of Particle (KOP) Discuss about this problem : Discuss in Forum 
12.  A boat is traveling along a circular path having a radius of 20 m. Determine the magnitude of the boat's acceleration if at a given instant the boat's speed is v = 5 m/s and the rate of increase in speed is v = 2 m/s^{2}. 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Kinematics of Particle (KOP) Discuss about this problem : Discuss in Forum 
13.  A particle having a mass of 1.5 kg, moves along a threedimensional path defined by the equations r = 94 + 3t) m, _{} = (t^{2} + 2) rad, and z = (6  t^{3}) m, where t is in seconds, and the zaxis is vertical. Determine the r, _{}, and z components of force which the path exerts on the particle when t = 2 s. 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : KOP: Force and Acceleration Discuss about this problem : Discuss in Forum 
14.  A car is equipped with a bumper B designed to absorb collisions. The bumper is mounted to the car using pieces of flexible tubing T. Upon collision with a rigid barrier A, a constant horizontal force F is developed which causes a car deceleration of 3g = 29.43 m/s^{2} (the highest safe deceleration for a passenger without a seatbelt). If the car and passenger have a total mass of 1.5 Mg and the car is initially coasting with a speed of 1.5 m/s, compute the magnitude of F needed to stop the car and the deformation x of the bumper tubing. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : KOP: Work and Energy Discuss about this problem : Discuss in Forum 
15.  In cases of emergency, the gas actuator can be used to move a 75kg block B by exploding a charge C near a pressurized cylinder of negligible mass. As a result of the explosion, the cylinder fractures and the released gas forces the front part ofthe cylinder, A, to move B and the floor is _{} = 0.5, determine the impulse that the actuator must impart to B. 

Your Answer: Option (Not Answered) Correct Answer: Option D Learn more problems on : KOP: Impulse and Momentum Discuss about this problem : Discuss in Forum 
16.  A girl having a weight of 40 lb slides down the smooth slide onto the surface of a 20lb wagon. Determine the speed of the wagon at the instant the girl stops sliding on it. If someone ties the wagon to the slide at B, determine the horizontal impulse the girl will exert at C in order to stop her motion. Neglect friction and assume that the girl starts from rest at the top of the slide, A. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : KOP: Impulse and Momentum Discuss about this problem : Discuss in Forum 
17.  If rod CD has a downward velocity of 6in/s at the instant shown, determine the velocity of the gear rack A at this instant. The rod is pinned at C to gear B. 

Your Answer: Option (Not Answered) Correct Answer: Option B Learn more problems on : Planar Kinematics of a Rigid Body (PKRB) Discuss about this problem : Discuss in Forum 
18.  The safe is transported on a platform which rests on rollers, each having a radius r. If the rollers do not slip, determine their angular velocity if the safe moves forward with a velocity v. 

Your Answer: Option (Not Answered) Correct Answer: Option A Learn more problems on : Planar Kinematics of a Rigid Body (PKRB) Discuss about this problem : Discuss in Forum 
19.  The automobile with wheels 2.5 ft in diameter is traveling in a straight path at a rate of 60 ft/s. If no slipping occurs, determine the angular velocity of one of the rear wheels and the velocity of the fastest moving point on the wheel. 

Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : Planar Kinematics of a Rigid Body (PKRB) Discuss about this problem : Discuss in Forum 
20.  A cord wrapped around the inner core of a spool. If the cord is pulled with a constant tension of 30 lb and the spool is originally at rest, determine the spool's angular Velocity when s = 8 ft of cord have unraveled. Neglect the weight of the cord. The spool and cord have a total weight of 400 lb and the radius of gyration about the axle A is k_{A} = 1.30 ft. 

Your Answer: Option (Not Answered) Correct Answer: Option C Learn more problems on : PKRB: Force and Animation Discuss about this problem : Discuss in Forum 