please help!

A 10 kg frictionless cart is pushed at a constant force of 5.0 N for a distance of 10 m. The work done on the cart is 50J.


How much kinetic energy did the cart possess after being pushed?

A) 10 J

B) 50 J

C) 250 J

D) 500 J


What is the speed of the cart when it is released?

A) 1.0 m/s

B) 2.2 m/s

C) 3.2 m/s

D) 5.0 m/s


The above cart is now released and rolls up a ramp. How high would it go?

A) 0.5 m

B) 0.7 m

C) 1.0 m

D) Cannot be answered with current information.