A hollow ball of mass = [m] kg rolls without slipping down…

A hollow ball of mass = kg rolls without slipping down a ramp of height = m, as pictured. At the bottom of the ramp, it rolls onto a frictionless table. It then has a perfectly elastic collision with a mass = kg on a spring with spring constant = N/m. (Q17 ans 2 pts, Q18 work 5 pts) What is the translational speed of the ball at the bottom of the ramp? (Q19, 7 pts) What is the velocity (speed and direction) of the ball directly after the collision. Velocities to the right will be positive. (Q20, 7 pts) What is the maximum compression of the spring after the collision? To continue, please give the translational speed of the ball at the bottom of the ramp (part a) in units of m/s.

A uniform meter stick is pivoted to rotate about a horizonta…

A uniform meter stick is pivoted to rotate about a horizontal axis through the 25 cm mark on the stick. The stick is released from rest in a horizontal position. The moment of inertia of a uniform rod about an axis perpendicular to the rod and through the center of mass of the rod is given by Determine the magnitude of the initial angular acceleration of the stick.