A freight company uses a compressed spring to shoot 2.00 kg packages up a 1.00-m -high frictionless ramp into a truck, as the figure shows. The spring constant is 481 N/m and the spring is compressed 30.0 cm .
A. What is the speed of the package when it reaches the truck?
B. A careless worker spills his soda on the ramp. This creates a 50.0--long sticky spot with a coefficient of kinetic friction 0.300. Will the next package make it into the truck?
physics - drwls, Sunday, November 14, 2010 at 8:31am
We will be glad to critique your thoughts.