Question

A particle is moving along X-axis under a force such that its position -time graph is as shown in figure.

As the particle passes position (5) :
A. it is instantaneously at rest and will now move along positive X-direction
B. it is moving along positive X-direction with a speed that is decreasing with time
C. it is moving along negative X-direction with a maximum speed
D. it is moving along negative X-direction with a minimum speed

Answer 1

Correct Answer - C
If `(dx)/(dt)` slope of `x - t` curve is zero. Then particle will be at rest.
If `(dx)/(dt) gt 0` velocity is `+ve`
If `(dx)/(dt) lt 0` velocity is `-ve`