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Q. An 8.00-kg point mass and a 14 kg point mass are held in place 50 cm apart. A particle of mass m is released from a point between the two masses 12 cm from the 8 kg mass along the line connecting the two fixed masses. Find the magnitude and direction of the acceleration of the particle.

Q. A 2.60 kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.190 s, what is the average force exerted on the ball by the wall?

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