( ii ) A body whose speed is constant(a) Must be accelerated(b) Might be accelerated(c) Has a constant velocity(d) Cannot be accelerated.

heck up only the correct statement in the following.A body has a constant velocity and still it can have a varying speedA body has a constant speed but it can have a varying velocity.A body having constant speed cannot have any acceleration.None of these.

When a body is accelerated(i) Its velocity always change(ii) Its speed always changes(iii) Its direction always changes(iv) Its speed may or may not change(i), (ii)(i, iv)(ii), (ii)    (ii), (iii)

25. Which of the following situations is impossible?*A. An object has velocity directed east and acceleration directed west.B. An object has velocity directed east and acceleration directed east.C. An object has velocity zero velocity but non-zero acceleration.D. An object has constant non-zero velocity and changing acceleration.

When the velocity of a body is variable, then :Its speed may be constantIts acceleration may be constantIts average acceleration may be constantAll of the above

Assertion (A) The speed of a body in uniform circular motion is constant.Reason (R) In uniform circular motion, the acceleration of the body is constant.Both (A) and (R) are true and (R) is the correct explanation of (A).Both (A) and (R) are true but (R) is not the correct explanation of (A).(A) is true but (R) is false.(A) is false but (R) is true.