Posted by **Maggie** on Wednesday, September 13, 2006 at 8:34am.

a rock weighing 20.0N falls from a height of 16.0m and sinks 0.600 m into the ground. from energy considerations, find the average force between the rock and the ground as the rock sinks.

(avg. force) x (distance sunk) is the3 work done by the soil in decelerating the rock

That = (kinetic eneregy whem it hits ground) = M g H

M g = 20 N

Avg force = (20 N)*(H/X)

H = 16 m and X = 0.60 m

- physics -
**yolonohomo**, Friday, September 25, 2015 at 4:39am
533.33 N

## Answer This Question

## Related Questions

- physics homework - You throw a 20 N rock into the air from ground level and ...
- physics - A 17-kg rock is on the edge of a 103-m cliff. (a) What potential ...
- physics - a rock is dropped from a height of 20m above the ground when it hits ...
- physics - a rock is dropped from a height of 20m above the ground when it hits ...
- Physics 11th grade 2 - 1) A 20 kg rock is on the edge of a 100 m cliff. a. What ...
- Algebra 1 - A physics student stands on top of a hill that has an elevation of ...
- Algebra - A physics student stands at the top of hill that has an elevation of ...
- physics - Julie throws a rock vertically upward. From a height of 64.0 meters ...
- math - A rock is dropped from a 600 foot tower. The height of the rock as a ...
- physics - a rock is dropped from a height of 15m above the ground. when it hits ...

More Related Questions