# Mechanical Engineering - Engineering Mechanics

### Exercise :: Engineering Mechanics - Section 6

46.

The wheels of a moving car possess

 A. potential energy only B. kinetic energy of translation only C. kinetic energy of rotation only D. kinetic energy of translation and rotation both

Explanation:

No answer description available for this question. Let us discuss.

47.

In order to determine the effects of a force, acting on a body, we must know

 A. magnitude of the force B. line of action of the force C. nature of the force i,e. whether the force is push or pull D. all of the above

Explanation:

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48.

The negative acceleration is called retardation.

 A. True B. False

Explanation:

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49.

The maximum displacement of a body, from its mean position is called amplitude.

 A. Correct B. Incorrect

Explanation:

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50.

A lifting machine lifts a load of 1000N through a distance of 0.2 m by means of an effort of 200N through a distance of 1m. This machine is an ideal one.

 A. Correct B. Incorrect