A particle moving along the -axis has an initial velocity of at

PHYSICS · Multi-part · CBSE · Physics · Motion in a Straight Line · Motion in a Straight Line

Problem

A particle moving along the

x

-axis has an initial velocity of

2\,\text{m s}^{-1}

t=0

. It experiences a constant acceleration of

+3\,\text{m s}^{-2}

for the next

4\,\text{s}

. Immediately after that, a constant acceleration of

-4\,\text{m s}^{-2}

acts on the particle until its velocity becomes zero. Answer the following: (i) Velocity at

t=4\,\text{s}

. (ii) Additional time required to come to rest. (iii) Total displacement from start to rest. (iv) Greatest speed attained in the motion.