Author Question: A thin cylindrical shell is released from rest and rolls without slipping down an inclined ramp that ... (Read 200 times)

RODY.ELKHALIL · **on:** Jul 29, 2018

A thin cylindrical shell is released from rest and rolls without slipping down an inclined ramp that makes an angle of 30 with the horizontal. How long does it take it to travel the first 3.1 m?

A) 1.4 s
B) 1.1 s
C) 2.1 s
D) 1.6 s
E) 1.8 s

Question 2

A 1200-kg pick-up truck traveling south at 15.0 m/s collides with a 750-kg car traveling east. The two vehicles stick together.

A patrolman investigating the accident determines that the final position of the wreckage after the collision is 25.0 m, at an angle of 50.0 south of east, from the point of impact. He also determines that the coefficient of friction between the tires and the road at that location was 0.400. What was the speed of the car before the collision?
A) 19.6 m/s
B) 4.84 m/s
C) 14.0 m/s
D) 23.4 m/s
E) 17.4 m/s