At a certain factory, 300 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.20 m/s. A motor maintains the belt's constant speed. The coefficient of kinetic friction between the belt and each crate is 0.400. After a short time, slipping between the belt and the crate ceases, and the crate then moves along with the belt. For the period of time during which the crate is being brought to rest relative to the belt, calculate: (Use g = 9.8 m/s/s) a) The kinetic energy supplied to the crate: b) The magnitude of the kinetic friction acting on the crate:

At a certain factory, 300 kg crates are dropped vertically from a packing machine onto a conveyor belt moving at 1.20 m/s. A motor maintains the belt's constant speed. The coefficient of kinetic friction between the belt and each crate is 0.400. After a short time, slipping between the belt and the crate ceases, and the crate then moves along with the belt. For the period of time during which the crate is being brought to rest relative to the belt, calculate: (Use g = 9.8 m/s/s) a) The kinetic energy supplied to the crate: b) The magnitude of the kinetic friction acting on the crate:

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter13: Chemical Reactions

Section13.5: Avogadro’s Number

Problem 2PQ

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