Homework 11 - lim(kl9356 – Homework 11 – Weathers...

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Unformatted text preview: lim (kl9356) – Homework 11 – Weathers – (17104) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A 3 kg steel ball strikes a wall with a speed of 13 . 2 m / s at an angle of 32 . 9 ◦ with the normal to the wall. It bounces off with the same speed and angle, as shown in the figure. x y 1 3 . 2 m / s 3 kg 1 3 . 2 m / s 3 kg 32 . 9 ◦ 32 . 9 ◦ If the ball is in contact with the wall for . 233 s, what is the magnitude of the average force exerted on the ball by the wall? Answer in units of N. 002 10.0 points A golf ball ( m = 39 . 1 g) is struck a blow that makes an angle of 27 . 1 ◦ with the horizontal. The drive lands 283 m away on a flat fairway. The acceleration of gravity is 9 . 8 m / s 2 . If the golf club and ball are in contact for 3 . 8 ms, what is the average force of impact?...
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Homework 11 - lim(kl9356 – Homework 11 – Weathers...

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