Physics Question: I don't understand how to answer this...

champ9389

Rookie

Karma Points: 0

Respect (N/A):

Date Posted: 7/24/2008 9:28:37 PM Status: Live

I don't understand how to answer this...

Course	Textbook	Chapter	Problem
Algebra Based Physics	N/A	N/A	N/A

Question Details:

A solid sphere is released from height h from the top of an incline making an angle θ with the horizontal.

(a) Calculate the speed of the sphere when it reaches the bottom of the incline in the case that it rolls without slipping. (Use g,h, and theta for θ as necessary.)

v_f = ((10/7)gh)^(1/2)

(b) Calculate the speed of the sphere when it reaches the bottom of the incline in the case that it slides frictionlessly without rolling. (Use g,h, and theta for θ as necessary.)

v_f = (2gh)^(1/2)

(c) Compare the time intervals required to reach the bottom in cases (a) and (b).
rolling time/sliding time =

parts a. and b. I figured out, but I don't understand how to answer part c... please help!!

I don't understand how to answer this...

Question:

Advertisement:

Answers: