• Support PF! Buy your school textbooks, materials and every day products via PF Here!

Rotational Work and Energy

  • Thread starter Nb
  • Start date

Nb

I have no idea how to do this question

A tennis ball, starting from rest, rolls down the hill in the drawing. At the end of the hill the ball becomes airborne, leaving at an angle of 35° with respect to the ground. Treat the ball as a thin-walled spherical shell, and determine the range x.

http://edugen.wiley.com/edugen/courses/crs1000/art/images/c09/nw0370-n.gif
 
691
1
First off, do you know the moment of inertia equation for a thin walled sphere? If not you'll need it.

I'd use the conservation of energy equation to find the velocity at the bottom and then a simple range equation to find the distance. Range would be failrly straightforward here because ho=hf once the ball becomes airborn.

That's how I would approach it.

Good luck.
 

Related Threads for: Rotational Work and Energy

  • Posted
Replies
6
Views
2K
  • Posted
2
Replies
34
Views
5K
Replies
3
Views
2K
Replies
0
Views
2K
Replies
1
Views
6K
Replies
14
Views
1K
Replies
2
Views
2K
Replies
2
Views
1K

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top