The kinetic energy (KE) versus time graph for a graph for a particle moving along a straight line is shown in the figure. The force vs time graph for the particle may be .

The kinetic energy (KE) versus time graph for a graph for a particle m

1.	The kinetic energy (KE) versus time graph for a graph for a particle moving along a straight line is shown in the figure. The force vs time graph for the particle may be .
Answer» Solution :`E_(k) = (1)/(2) mv^(2) = KT , rArr` POWER `'P' = ((dE_(k))/(dt)) = k` In this CASE, `P=Fv` Hence, `F = (P)/(V) = (K)/(sqrt((2Kt)/(m))) = (K')/(sqrt(t))` where `K^(1)` is ANOTHER constant.