Posted by sara on Friday, February 10, 2012 at 2:11pm.
Betty Bodycheck (mB = 50.2 kg, vB = 22.0 km/h in the positive xdirection) and Sally Slasher (mS = 45.2 kg, vS = 28.0 km/h in the positive ydirection) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° counterclockwise from her original direction, and Sally is heading back and to her right in a direction that is 12.0° from the xaxis. What are their final kinetic energy?

physics  drwls, Friday, February 10, 2012 at 3:18pm
Total or separately?
Write the two equations of conservation of momentum in x and y directions. Sinc e you know the final directions, you can solve for the two unkonwn speeds.
With the final speeds, you can compute the final kinetic energy of each person

physics  sara, Friday, February 10, 2012 at 3:21pm
I did that but i am not getting the right answer

physics  dave, Monday, October 8, 2012 at 5:49pm
ok does anyone know how to do this i need step by step help on this
Answer This Question
Related Questions
 physics  Betty Bodycheck (mB = 51.4 kg, vB = 22.0 km/h in the positive x...
 Physics  Betty Bodycheck (mB = 55.1 kg, vB = 22.0 km/h in the positive x...
 physics  Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x...
 physics  Betty Bodycheck (mB = 50 kg, vB = 22.0 km/h in the positive x...
 Physics  Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x...
 University Physics  Betty Bodycheck (mB = 60.3 kg, vB = 22.0 km/h in the ...
 Physics  Betty Bodycheck (mB = 55 kg, vB = 22.0 km/h in the positive x...
 Physics  Betty Bodycheck (mB = 55 kg, vB = 22.0 km/h in the positive x...
 Physics  Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x...
 physics  A 0.110kg hockey puck, moving at 35.0 m/s, strikes a 0.290kg jacket ...
More Related Questions