a. What is the velocity of the crate after 1sec? b. Compute the power transmitted after 1sec.

International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter7: Dry Friction
Section: Chapter Questions
Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...
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A crate has a mass of 120kg and the coefficient of static and kinetic friction is
0.60 and 0.50, respectively. The crate starts from rest and the motor exerts a tension T=
1220 + 200t (N). If the elevation of the dock is 30 degrees from the horizontal,
a. What is the velocity of the crate after 1sec?
b. Compute the power transmitted after 1sec.
Transcribed Image Text:A crate has a mass of 120kg and the coefficient of static and kinetic friction is 0.60 and 0.50, respectively. The crate starts from rest and the motor exerts a tension T= 1220 + 200t (N). If the elevation of the dock is 30 degrees from the horizontal, a. What is the velocity of the crate after 1sec? b. Compute the power transmitted after 1sec.
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