Question

A freight company uses a compressed spring to shoot 1.70 kgkg packages up a 1.00-mm -high frictionless ramp into a truck, as the figure(Figure 1) shows. The spring constant is 338 N/mN/m and the spring is compressed 33.0 cmcm .

What is the speed of the package when it reaches the truck?

AND

A careless worker spills his soda on the ramp. This creates a 50.0-cmcm-long sticky spot with a coefficient of kinetic friction 0.43. How high up the ramp will the package go after crossing the sticky spot?

Answer 1