Question

Given below are the four curves describing variation of velocity with time of a particle. Which one of these describe the motion of a particle initially in positive direction with constant negative acceleration?

• A. (W)
• B. (X)
• C. (Y)
• D. (Z)

Answer 1

The correct option is C (Y)

$\bullet$ Constant acceleration (negative).

$⟹$ Velocity will decrease with time.

Graph $\left(x\right)$ is eliminated.

$\bullet$ Constant acceleration.

$⟹$ Slope of $v-t$ graph will remain constant.

Graph $\left(w\right)$ eliminated.

$\bullet$ Given that initially the particle is in positive direction. Graph $\left(z\right)$ eliminated.

Graph $\left(y\right)$ satisfies all the above conditions.