Mechanical Engineering - Engineering Mechanics

1.
The point, through which the whole weight of the body acts, irrespective of its position, is known as
moment of inertia
centre of gravity
centre of percussion
centre of mass
Answer: Option
Explanation:
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2.
The loss of kinetic energy during elastic impact is zero.
Agree
Disagree
Answer: Option
Explanation:
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3.
The overturning of a vehicle on a level circular path can be avoided if the velocity of vehicle is __________ .
less than
greater than
Answer: Option
Explanation:
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4.
Which of the following is a scalar quantity?
Force
Speed
Velocity
Acceleration
Answer: Option
Explanation:
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5.
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as
Newton's first law of motion
Newton's second law of motion
Newton's third law of motion
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.