Posted by Jess on Thursday, September 16, 2010 at 4:58pm.
A hockey puck moving due east with speed 1.00 m/s collides with an identical puck moving 40 degrees south of west with speed 2.00 m/s. After they collide, the first puck is moving south with speed 1.50 m/s. What is the direction and speed of the second puck?

physics  bobpursley, Thursday, September 16, 2010 at 6:16pm
break up each puck into N, E components. Then use the law of conservation of momentum in each direction.
N:
0M*2sin40=M*1.5+M*Xn
notice the M's divide out. Solve for Xn, the north component of the second puck.
E:
M*12Mcos40=0+MXe
solve for Xe, the east component of the second puck.
Answer This Question
Related Questions
 Physics  Two pucks collide on a level airhockey table. Puck A has a mass of 0....
 Physics Help!  A hockey puck moving at 0.4600 m/s collides with another puck ...
 physics  Mario, a hockey player, is skating due south at a speed of 5.4 m/s ...
 Physics  Mario, a hockey player, is skating due south at a speed of 6.6 m/s ...
 physics  Mario, a hockey player, is skating due south at a speed of 7.05 m/s ...
 Physics  An airhockey puck of mass m floats across the table essentially ...
 Physics 203  A puck of mass 0.60 kg approaches a second, identical puck that is...
 Physics 12  This came up on our test review for tomorrow, and I'm stumped! "A ...
 PHYSICS  A 0.445 kg ice puck, moving east with a speed of 2.82 m/s, has a head...
 physics  A puck of mass 5.0 kg moving at 16.5 m/s approaches an identical puck ...
More Related Questions