A crate is attached to a winch or pulley that pulls the crate upwards. The crate has a mass of120 kg and the coefficient of static and kinetic friction between the crate and surface is 0.60and 0.50, respectively. The crate starts from rest and the surface is measured 30° from thehorizontal. If the pulley exerts a tension T = 1220 + 200t,a. What is the impulse applied to the crate during the first second of motion?b. After 1 second, what is the velocity of the crate?c. Compute the power transmitted to the winch after the first second. A crate is attached to a winch or pulley that pulls the crate upwards. The crate has a mass of120 kg and the coefficient of static and kinetic friction between the crate and surface is 0.60and 0.50, respectively. The crate starts from rest and the surface is measured 30° from thehorizontal. If the pulley exerts a tension T = 1220 + 200t,a. What is the impulse applied to the crate during the first second of motion?b. After 1 second, what is the velocity of the crate?c. Compute the power transmitted to the winch after the first second.

Normal reaction acting on the block due to surface = N= mgcosø= 120×9.8×cos(30)= 1018.45 N Value of…

Answered: A crate is attached to a winch or…

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 3OQ

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A crate is attached to a winch or pulley that pulls the crate upwards. The crate has a mass of
120 kg and the coefficient of static and kinetic friction between the crate and surface is 0.60
and 0.50, respectively. The crate starts from rest and the surface is measured 30° from the
horizontal. If the pulley exerts a tension T = 1220 + 200t,
a. What is the impulse applied to the crate during the first second of motion?
b. After 1 second, what is the velocity of the crate?
c. Compute the power transmitted to the winch after the first second.

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