If a cart is accelerating downhill under a net force of 25 n, what additional force would cause the cart to have a constant velocity?

25 n
50 n
no additional force is needed
- 25 n

Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.