(a) What impulse must be imparted to a golf ball of mass 0.041 kg to give it a velocity of 55.3 m/s? (b) If the golf club is in contact with the ball as it is accelerated over an interval of 1.11 cm, estimate the average force exerted on the ball by the club.
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(a) What impulse must be imparted to a golf ball of mass 0.041 kg to give it a velocity of 55.3 m/s?
(b) If the golf club is in contact with the ball as it is accelerated over an interval of 1.11 cm, estimate the average force exerted on the ball by the club.
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- A tennis player receives a shot with a 0.05 kg ball travelling horizontally at 40 m/s and returns the shot with the ball traveling horizontally in the opposite direction with a speed of also 40 m/s. Find (a) the magnitude of the impulse delivered to the ball, and (b) the average force applied/exerted on the ball if it remains in contact with racket for 0.002 sec. A.) (a) 2.0 kg m/s, (b) 8000 N B.) (a) 0.0 kg m/s, (b) 200 N C.) (a) 0.0 kg m/s, (b) 2000 N D.) (a) 4.0 kg m/s, (b) 2000 NA 0.263-kg volleyball approaches a player horizontally with a speed of 12.8 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 21.7 m/s. (a) What impulse is delivered to the ball by the player? (Take the direction of final velocity to be the positive direction. Indicate the direction with the sign of your answer.) kg • m/s (b) If the player's fist is in contact with the ball for 0.0600 s, find the magnitude of the average force exerted on the player's fist.A 1.0 kg ball drops vertically onto a floor, hitting with a speed (just before hitting floor) of 20 m/s. It rebounds with a speed (just after leaving floor) of 15 m/s. (a) What is the magnitude of the impulse that acts on the ball during the contact?(b) If the ball is in contact with the floor for 0.040 s, what is the magnitude of the average force exerted on the floor?
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