Question 3: (15 marks) A- From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 m/s. Calculate the initial recoil velocity of the rifle. (7 degrees). B- A ball of mass 200 g traveling at 10 m/s is struck by a stick so as to return it along its original path with a velocity of 5 m/s. Calculate the change of momentum that occurred in the motion of the ball due to the force applied by the stick. (8 degrees)
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