A bullet (W₁ = 3.5 oz) with a is fired horizontally with a velocity v₁ = 1675 ft/sec into the block (W₂ = 5.7 lb) of soft wood initially at rest on the horizontal surface. The bullet emerges from the block with the velocity v₂ = 1280 ft/sec, and the block is observed to slide a distance of d = 7.3 ft before coming to rest. Determine the coefficient of kinetic friction uk between the block and the supporting surface. Answer: Uk= i W₁ V₁ W.

A bullet (W₁ = 3.5 oz) with a is fired horizontally with a velocity v₁ = 1675 ft/sec into the block (W₂ = 5.7 lb) of soft wood initially at rest on the horizontal surface. The bullet emerges from the block with the velocity v₂ = 1280 ft/sec, and the block is observed to slide a distance of d = 7.3 ft before coming to rest. Determine the coefficient of kinetic friction uk between the block and the supporting surface. Answer: Uk= i W₁ V₁ W.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Question

A bullet (W₁ = 3.5 oz) with a is fired horizontally with a velocity v₁ = 1675 ft/sec into the block (W₂ = 5.7 lb) of soft wood initially at rest
on the horizontal surface. The bullet emerges from the block with the velocity v₂ = 1280 ft/sec, and the block is observed to slide a
distance of d = 7.3 ft before coming to rest. Determine the coefficient of kinetic friction μk between the block and the supporting
surface.
Answer: Uk=
i
W₁
W₂

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