A body whose speed is constant

(a) must be accelerated

(b) might be accelerated

(c) has a constant velocity

(d) cannot be accelerated

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Solution

Answer: (b) might be accelerated
A body whose speed is constant must be accelerated if its direction gets changed.
For example, A body performing uniform circular motion has constant speed but a non-zero acceleration as its direction is changing. Thus, it is an example of accelerated motion with constant speed.

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Similar questions

If the acceleration of a body is not zero, then its velocity can be constant.

Mark the correct statement(s)
(1) If speed of a body is varying, its velocity must be varying and it must have non-zero acceleration.

(2) If velocity of a body is varying, its speed must be varying.

(3) A body moving with varying velocity may have constant speed.

(4) A body moving with varying speed may have constant velocity, if its direction of motion remains constant.

Which of the following statement must always be true?

I.If an objects acceleration is zero, then its speed must remain constant.

II. If an objects acceleration is constant, then it must move in a straight line.

III. If an objects speed remains constant, then its acceleration must be zero.

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