Question

A particle moves along x-axis. At time `t = 0`, the particle is at origin and its initial veclocity is along positive x-direction. The plot of its `("speed")^(2)` versus its x-coordinate is as shown in graph.

As the particle moves the acceleration of particle :
A. is always uniform
B. decreases with time
C. increases with time
D. information insufficient

Answer 1

Correct Answer - A
`(dv^(2))/(dx) = tan 135^(@)`
`2v (dv)/(dx) = -1`
`a = v (dv)/(dx) = -(1)/(2) =` constant.