A particle is moving along the -axis

PHYSICS · Subjective · CBSE · Physics · Motion in a Straight Line · Motion in a Straight Line

Problem

A particle is moving along the

x

-axis. Its coordinate varies with time as

x=-20+5t^2

. Match the following columns:| Column I | Column II ||---|---|| (a) Particle crosses the origin at | (p)

0\text{ s}

|| (b) Time at which velocity and acceleration are equal | (q)

1\text{ s}

|| (c) Time at which the particle changes its direction of motion | (r)

2\text{ s}

|| (d) Time at which velocity is zero | (s) None of the above |