The 5-oz pinewood-derby car is released from restat the starting line A and crosses the fi nish lineC 2.75 sec later. The transition at B is small andsmooth. Assume that the net retarding force is constant throughout the run and find this force 3/23 The 142-g pinewood-derby car is released fromrest at the starting line A and crosses the finishline C 2.75 s later. The transition at B is small andsmooth. Assume that the net retarding force is con-stant throughout the run and find this force.20°ACВ3 m4.5 m

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3/23 The 142-g pinewood-derby car is released from rest at the starting line A and crosses the finish line C 2.75 s later. The transition at B is small and smooth. Assume that the net retarding force is con- stant throughout the run and find this force. 20° A C В 3 m 4.5 m

3/23 The 142-g pinewood-derby car is released from rest at the starting line A and crosses the finish line C 2.75 s later. The transition at B is small and smooth. Assume that the net retarding force is con- stant throughout the run and find this force. 20° A C В 3 m 4.5 m

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 7.48P: Find the smallest distance d for which the hook will remain at rest when acted on by the force P....

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Concept explainers

Clutches, Brakes, Couplings, and Flywheels

The clutch is described as a machine element used to connect or disconnect two shafts together to transmit torque or power. The clutch works on the principles of friction. The clutch is commonly used in automobiles to transfer power from the driving shaft to the driven shaft.

Question

The 5-oz pinewood-derby car is released from rest
at the starting line A and crosses the fi nish line
C 2.75 sec later. The transition at B is small and
smooth. Assume that the net retarding force is constant throughout the run and find this force

3/23 The 142-g pinewood-derby car is released from
rest at the starting line A and crosses the finish
line C 2.75 s later. The transition at B is small and
smooth. Assume that the net retarding force is con-
stant throughout the run and find this force.
20°
A
C
В
3 m
4.5 m

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