Question

1.Acceleration down the incline at different angles: The motion of a ball rolling down the incline at several different values of θ. If a 0.200 kg ball starts from rest on an incline with θ=30º, what will its acceleration be, and what is the magnitude of the normal force exerted by the incline during the motion? If the ball starts from an initial height of 30.0 cm above its height at the bottom of the incline, what is its final speed at the bottom, and how long did it take to get there?

2. Initial launch up the incline: Rolling the ball up the incline at some initial speed, and tracking the motion up and back down. If it starts off at an initial speed of 2.00 m/s on an incline with θ=30º, what distance d up the incline will it travel before starting back down? What will its speed be when it gets back to its initial position at the bottom, and what was the total time for the roundtrip?

Answer 1