Ask a New Question

Question

a 15gram bullet moving at 300m/s pass through z 2 cm thick sheet of foam and emerges with a speed of 90m/s find average force impeded its motion through the plastic.
13 years ago

Answers

drwls
Avg force * thickness
= work done by bullet
= kinetic energy loss

Avg. force =
0.015 kg*(1/2)*(300^2 - 90^2](m^2/s^2)/0.02 m
= 3.07^10^4 N
13 years ago

Related Questions

A 5.00 g bullet moving with an initial speed of 340 m/s is fired into and passes through a 1.00 kg b... a 35 kg bullet moving at 475 m/s. strikes a 2.5 kg wooden block. the bullet passes through the bloc... A 7.80-g bullet moving at 590 m/s penetrates a tree trunk to a depth of 4.8 cm. Assuming the frictio... A 7.24 g bullet moving at 636 m/s penetrates a tree to a depth of 4.87 cm. Use energy considerations... A 1.60-g bullet, moving at 542 m/s, strikes a 0.249-kg piece of wood at rest on a frictionless table... A 7g bullet going at 300m/s hits and embeds itself into a 3.456kg block held on a frictionless table... A 7.74- g bullet is moving at 578.00 m/s as it leaves the 0.64- m-long barrel of a rifle. What is th... if 15g bullet traveling at 300ms-ยน strike and is absorb by a 75kg object find the speed with which t... 7.18-g bullet moving at 563 m/s penetrates a tree trunk to a depth of 5.1 cm. Find the average frict...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use