The next three questions pertain to the situation described below.
A solid sphere, a hollow sphere, and a solid cylinder have the same mass M and the same radius R. They are positioned at the top of the same ramp at the same height h = 7.2 m. They are released from rest and roll down the ramp without slipping.
20) Which object has the largest velocity when it reaches the bottom of the ramp?
All three objects have the same velocity at the bottom of the ramp.
The hollow sphere.
The answer cannot be determined with the information provided.
The solid cylinder.
The solid sphere.
21) What is the velocity of the solid sphere when it reaches the bottom of the ramp, Vs?
Vs = 11.89 m/s
Vs = 13.29 m/s
Vs = 10.05 m/s
Vs = 9.21 m/s
Vs = 8.4 m/s.
22) Suppose the answer to the above problem is Vs. If the radius of the solid sphere was increased, but its mass and the vertical distance it rolls down the ramp was kept the same, how would its new speed at the bottom of the ramp Vnew compare to Vs ?
Vnew < Vs
Vnew > Vs
Vnew = Vs