Homework Statement
1. What is the gravitational energy (relative to the unstretched surface of the trampoline) of the 20kg ball at its apex 2.0m above the trampoline
2. What is the kinetic energy of the ball just before impacting the trampoline
3. At maximum stretch at the bottom of the motion...
Homework Statement
Kim has her coffee cup on her car's dash when she takes a corner with radius 4 m and 20 km/h. What is the minimum coefficient of static friction which would allow the coffee cup to stay there without slipping?
Homework Equations
Can someone show me the steps in how they...