Q.

A particle starts moving along a straight line path with a velocity 10 m s-1. After 5 s, the distance of the particle from the starting point is 50 m. Which of the following statement about the nature of motion of the particle are correct?

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a

The body may be speeding up with constant positive acceleration.

b

The motion may be moving with constant velocity.

c

The body may have constant negative acceleration

d

The motion may be first accelerated and then retarded.

answer is B.

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Detailed Solution

u=10ms−1,t=5s,S=50mVav. =505=10ms−1The motion may be with constant velocity. The body may be first accelerated and then retarded.
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