Monday

December 22, 2014

December 22, 2014

Posted by **Becky** on Wednesday, March 21, 2012 at 3:53pm.

- Physics -
**Elena**, Wednesday, March 21, 2012 at 5:11pmThe law of conservation of linear momentum for elastic collision

m1•v1 = m1•u1 + m2•v2.

The velocities after collision are

u1 =(m1-m2) •v1/(m1+m2)

u2 =2•m1•v1/(m1+m2)

Since m2=4m1,

u1 =(m -4m) •82/(m+4m) = - 49.2 m/s

u2 =2•m •82/(m +4m) = 32.8 m/s

**Answer this Question**

**Related Questions**

physics - croquet ball must have a set mass of 0.50 kg. a red ball moving at 10....

physics - a ball of mass m , moving with uniform speed, collides elastically ...

physics - A stationary billiard ball, mass 0.17 kg, is struck by an identical ...

Physics - A 6.00 kg ball (ball 1), moving to the right at a velocity of +1.00 m/...

physics please help - A 5.00 kg ball (ball 1), moving to the right at a velocity...

physics - When 2 balls collide head on where one ball is moving and one ball is ...

Physics - A stationary billiard ball, mass 0.17 kg, is struck by an identical ...

physics - A heavy ball A of mass 10kg is moving at a velocity of 10m/s to the ...

physics please help me - A 5.00 kg ball (ball 1), moving to the right at a ...

Physics HELPPP PLEASEEE - A 2.0 kg ball moving with a speed of 3.0 m/s hits, ...