A baseball having a mass of `0.4 kg` is thrown such that the force acting on it varies with time as shown in the first graph. The corresponding velocity time graph is shown in the second graph. Determine the power applied as a function time and the work done till `t=0.3 s`.

Options

A. The graph of power delivered to baseball and time is a straight line.
B. The net force on baseball is constant.
C. For `tgt0.2` the graph of power delivered to the baseball and time is a parabola.
D. The net force on baseball is in direction of velocity.

Answer

D

Explanation

Because accelerationof base ball is constant and positive so force is constant and in direction of velocity and `P=vecF.vecV` Graph straight line.