A 4-Kg Cart Starts Up an Incline with a Speed

Multiple Choice

A 4-kg cart starts up an incline with a speed of 3 m/s and comes to rest 2 m up the incline.The total work done on the cart is:

A) -6 J
B) -8 J
C) -12 J
D) -18 J
E) impossible to calculate without more information