Posted by **ruben** on Friday, November 2, 2012 at 5:18am.

The figure below shows a ball with mass m = 0.299 kg attached to the end of a thin rod with length L = 0.388 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. The rod is held horizontally as shown and then given enough of a downward push to cause the ball to swing down and around and just reach the vertically up position, with zero speed there.

How much work is done on the ball by the gravitational force from the initial point to the following points?

(a) the lowest point

J

(b) the highest point

J

(c) the point on the right level with the initial point

J

If the gravitational potential energy of the ball-Earth system is taken to be zero at the initial point, what is it when the ball reaches the following points?

(d) the lowest point

J

(e) the highest point

J

(f) the point on the right level with the initial point

J

## Answer This Question

## Related Questions

- physics - Figure 8-31 shows a ball with mass m = 1.0 kg attached to the end of a...
- Physics - The figure below shows a thin rod, of length L and negligible mass, ...
- PHYSICS - The figure shows a ball with mass m = 0.405 kg attached to the end of ...
- Physics - A mass of 100g is attached to one end of a massless rod, 10cm in ...
- Physics/Math - A thin rod, of length L and negligible mass, that can pivot about...
- Physics - A thing rod of length L and negligible mass, that can pivot about one ...
- physics - Two blocks, each of mass m, are attached to the ends of a massless rod...
- Physics - A 2.5 m rod of mass M= 4. kg is attached to a pivot .8m from the left ...
- Physics - A thin rod, of length L and negligible mass, that can pivot about one ...
- rotational mechanics - a thin rod of length 2R and mass M is standing vertically...

More Related Questions