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.
