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Civil Engineering - Applied Mechanics

Exercise : Applied Mechanics - Section 3
41.
A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is
0.25
0.50
0.75
1.0
Answer: Option
Explanation:
No answer description is available. Let's discuss.
42.
A number of forces acting simultaneously on a particle of a body
may not be replaced by a single force
may be replaced by a single force
may be replaced by a single force through C.G. of the body
may be replaced by a couple
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
43.
The moment of inertia of the shaded portion of the area shown in below figure about the X-axis, is
229.34 cm4
329.34 cm4
429.34 cm4
529.34 cm4.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
44.
The force acting on a point on the surface of a rigid body may be considered to act
at the centre of gravity of the body
on the periphery of the body
on any point on the line of action of the force
at any point on the surface normal to the line of action of the force.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
45.
A satellite is said to move in a synchronous orbit if it moves at an altitude of 36, 000 km with a maximum velocity of about
7000 km per hour
8000 km per hour
9000 km per hour
10, 000 per hour
11, 000 km per hour.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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