Author Question: A solid uniform sphere of mass 120 kg and radius 1.7 m starts from rest and rolls without slipping ... (Read 393 times)

aabwk4 · **on:** Jul 29, 2018

A solid uniform sphere of mass 120 kg and radius 1.7 m starts from rest and rolls without slipping down an inclined plane of vertical height 5.3 m. What is the angular speed of the sphere at the bottom of the inclined plane?

A) 5.1 rad/s
B) 8.7 rad/s
C) 9.7 rad/s
D) 6.1 rad/s

Question 2

A 45.0-kg sample of ice is at 0.00 C. How much heat is needed to melt it? For water LF = 334,000 J/kg and LV = 2.256 106 J/kg.

A) 1.50 104 kJ
B) 4.10 106 kJ
C) 0.00 kJ
D) 1.02 105 kJ