Select the situation that the girl is most likely to break the pine board. O Increase the contact time to increase the velocity. Reduce the contact time to increase the contact force. Reduce the contact time to increase the velocity. O Increase the contact time to increase the contact force. MacBook Pro G Search or type URL V. %24 ) 5. 9- 6. R

Select the situation that the girl is most likely to break the pine board. O Increase the contact time to increase the velocity. Reduce the contact time to increase the contact force. Reduce the contact time to increase the velocity. O Increase the contact time to increase the contact force. MacBook Pro G Search or type URL V. %24 ) 5. 9- 6. R

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Description: Select the situation that the girl is most likely to break the pine board.O Increase the contact time to increase the velocity.Reduce the contact time to increase the contact force.Reduce the contact time to increase the velocity.O Increase the cont

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 95CP: On June 25, 1983, shot-putter Udo Beyer of East Germany threw the 7.26-kg shot 22.22 m, which at...

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A football punter accelerates a football from rest to a speed of 15 m/s during the time in which his toe is in contact with the ball (about 0.28 s). If the football has a mass of 0.43 kg, what average force does the punter exert on the ball? N
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On June 25, 1983, shot-putter Udo Beyer of East Germany threw the 7.26-kg shot 22.22 m, which at that time was a world record. (a) If the shot was released at a height of 2.20 m with a projection angle of 45.00, what was its initial velocity? (b) If while in Beyer’s hand the shot was accelerated uniformly over a distance of 1.20 m, what was the net force on it?
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Superman must stop a 105-km/h train in 100 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 × 105 kg. A.) Determine the force that must be exerted on the train. Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the direction opposite to the initial velocity. FTS =_____________________ ______________________ B.) Compare the magnitudes of the force exerted on the train and the weight of the train (give as %%). Express your answer using two significant figures. FTS/mg = _______________________% C.) How much force does the train exert on Superman? Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is…