Saturday
April 19, 2014

Homework Help: physics

Posted by monic on Wednesday, October 10, 2012 at 11:24pm.

A 7.80-g bullet moving at 520 m/s penetrates a tree trunk to a depth of 4.60 cm.
(a) Use work and energy considerations to find the average frictional force that stops the bullet.
N

(b) Assuming the frictional force is constant, determine how much time elapses between the moment the bullet enters the tree and the moment it stops moving.
s

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - A 7.80-g bullet moving at 590 m/s penetrates a tree trunk to a depth ...
Physics - A 7.80-g bullet moving at 530 m/s penetrates a tree trunk to a depth ...
physics lab - A bullet is shot into a block of plastic. The bullet penetrates ...
physics - a 2.1 gram bullet is shot into a tree stump. Just before it hits the ...
physics - what force is necessary to stop a 20 g bullet moving at 200 m/s as it...
Physics - 1. A bullet of 0.0500 kg is fired into a block of wood. Knowing that ...
Physics (High School) - A 7.24 g bullet moving at 636 m/s penetrates a tree to a...
Physics - A 3.00-g bullet (c = 0.0305 cal/g . C = 128 J / kg . C) moving at ...
Physics - A bullet moving with a speed 150 m/s strikes a tree and penetrates 3.5...
pme - a bullet moving at 270 m/s penetrates 5 cm into a tree limb, beforecoming ...

Search
Members