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Q. A 2.60 kg steel ball strikes a massive wall at 10.5 m/s at an angle of alpha = 59.5° with the plane of the wall. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.218 s, what is the magnitude of the average force exerted on the ball by the wall?

Q. Two blocks of mass 3.5 kg and 8 kg are connected by a massless string that passes over a frictionless pulley the incline are frictionless. Find (a) the magnitude of the acceration of each block and (B) the tension in the string.

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