Thursday

January 29, 2015

January 29, 2015

Posted by **John** on Monday, October 12, 2009 at 11:41pm.

A) If after the collision the two masses join together what is their velocity after the collision?

3.0 X 2.0 = 6m/s. Is this correct?

B)Is this a elastic or inelastic collision?

Elastic. Is this correct?

- Physics -
**MathMate**, Tuesday, October 13, 2009 at 8:21am3.0 X 2.0 = 6m/s. Is this correct?

The unit is not correct: 3 kg * 2 m/s gives 6 kg-m/s.

This is not the answer, but the momentum of the left mass.

Calculate the momentum of the right mass and add to that of the left (watch the sign) to get the total momentum.

Divide the total momentum by the total mass to get the velocity after the inelastic impact.

An elastic impact is like bouncing a superball on the wall, and an inelastic impact is like dropping mashed potatoes on the floor. Hope you get the idea.

**Answer this Question**

**Related Questions**

physics - A glider with a mass of 3 kg is moving rightward at a speed of 2 m/s ...

Physics - A mass m = 1.50 kg oscillates on an ideal,massless horizontal spring ...

Physics - Two waves are combined to form this standing wave equation of y(x,t...

Physics - Two waves are combined to form this standing wave equation of y(x,t...

Physics -Conservation of Momentum- - 1) A 1 kg mass moving at 1 m/s has a ...

Physics -Conservation of Momentum- - 1) A 1 kg mass moving at 1 m/s has a ...

Physics ~really need help!~ - 1) A 1 kg mass moving at 1 m/s has a totally ...

Physics - A block of mass m1 = 2.4 kg initially moving to the right with a speed...

Physics - A block of mass m1 = 2.4 kg initially moving to the right with a speed...

Physics - An old Chrysler with mass 1800 kg is moving along a straight stretch ...