Current Attempt in Progress

The cart is moving down the incline with a velocity $v_0=13\frac{m}{s}$ at $t=0,$ at which time the force $P$ begins to act as shown. After $6\mathrm{.}1$

seconds the force continues at the $53-$N level. Determine the velocity $v$ of the cart $($positive if down the hill$)$ at time $t=7\mathrm{.}5s$ and

calculate the time $t$ at which the cart velocity is zero.

Answers:

At $t=7\mathrm{.}5s,$

$v=$

$\frac{m}{s}$

The velocity is zero when $t=$