2. A 2.5-kg concrete block sliding on a vertical wall is being acted upon by a force P as shown in the figure below. Assume that the coefficient of kinetic friction between the concrete block and the wall is 0.88. 148° (a) Draw the free-body diagram of the concrete block. (b) If the normal force exerted by the wall to the concrete block is 20.0 N, what would be the magnitude of the external force P, and (Ans: 37.74 N) (c) The acceleration of the block? (Ans: -15.56 m/s)

2. A 2.5-kg concrete block sliding on a vertical wall is being acted upon by a force P as shown in the figure below. Assume that the coefficient of kinetic friction between the concrete block and the wall is 0.88. 148° (a) Draw the free-body diagram of the concrete block. (b) If the normal force exerted by the wall to the concrete block is 20.0 N, what would be the magnitude of the external force P, and (Ans: 37.74 N) (c) The acceleration of the block? (Ans: -15.56 m/s)

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 63P: The contestant now pulls the block of ice with a rope over his shoulder at the same angle above the...

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