A) What is the magnitude of the impulse associated with the collision force? B)

Question

A) What is the magnitude of the impulse associated with the collision force?

B) What is the average force exerted by the ball on the wall?

C) What is the direction of motion of the interlocked vehicles after the collision? Give your answer in terms of the angle that the velocity vector makes with respect to East. (East = 0o, North = 90o, West = 180o, and South = 270o)

I need both correct answers to give full rating

A ball of mass 6.5 g with a speed of 27.4 m/s strikes a wall at an angle 22.0 degree and then rebounds with the same speed and angle. It is in contact with the wall for 39.0 ms. A) What is the magnitude of the impulse associated with the collision force? B) What is the average force exerted by the ball on the wall? C) What is the direction of motion of the interlocked vehicles after the collision? Give your answer in terms of the angle that the velocity vector makes with respect to East. (East = 0 degree, North = 90 degree, West = 180 degree, and South = 270 degree)

Explanation / Answer

apply Impulse = force *( time = chnage in momentun

so

J = Ft = m(v-mu)

J =0.0065 *27.4 * cos 22

J = 0.33 Kgms

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force F = J/t = 0.33/0.039 = 8.46 N

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direction is 45 deg of east

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