Physics
posted by Em .
A billiard ball of mass m = 0.150 kg hits the cushion of a billiard table at an angle of θ1 = 60.0° at a speed of v1 = 2.50 m/s. It bounces off at an angle of θ2 = 47.0° and a speed of v2 = 2.20 m/s.
a) What is the magnitude of the change in momentum of the billiard ball?
b) In which direction does the change of momentum vector point? (Take the xaxis along the cushion and specify your answer in degrees.)
Thank you for Any and All Help!!
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