Tuesday
March 3, 2015

Homework Help: physics

Posted by Anonymous on Wednesday, February 23, 2011 at 4:22pm.

You are hired as ballistics expert and need to measure the muzzle speed of the bullet (with a mass, m = 20 g) for the gun. You fire a ballistic gun horizontally into a 2-kg ballistic pendulum (M = 2 kg) hanging at rest on a massless rod. After the bullet hits it and becomes embedded in it, the pendulum swings 0.5 m above its original height (h = 0.5 m).
Find the speed with which the bullet hits the block (muzzle velocity). Round the answer (use no digits after decimal place).
Hint: use both laws of conservation: for energy and momentum.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A pistol is fired horizontally and the bullet has a muzzle velocity (...
physics - A 32 kg gun is standing on a frictionless surface. The gun fires a 55....
physics - A rifle with a mass of 2.0kg is used to fire a bullet with a mass of ...
Physics - A gun fires a bullet. When will the muzzle velocity of the bullet be ...
physics - The spring in the muzzle of a child's spring gun has a spring constant...
physics - A bullet with a mass of 5.00* 10^ -3 kg is loaded into a gun. The ...
science - a machine gun can fire 20 bullet persecond if speed of bullet is 100m/...
emu - a bullet of mass ..21kg is fired from a gun of a mass 5.6kg. if gun is ...
physics - A 5g bullet is fired from a 5000g gun. If the bullet leaves the gun ...
Physics - When a gun (3 kg) shoots a bullet (.025 kg), the bullet goes forward ...

Members