7. A 225-kg crate is pushed horizontally with a force of 710 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.

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Chapter4: Dynamics: Force And Newton's Laws Of Motion
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draw the fbd please
7.
A 225-kg crate is pushed horizontally with a
force of 710 N. If the coefficient of friction
is 0.20, calculate the acceleration of the crate.
| 8.
An 18.0-kg box is released on a 37.0° incline and
accelerates down the incline at 0.270 m/s². Find the fric
tion force impeding its motion. How large is the coeffi-
cient of kinetic friction?
Transcribed Image Text:7. A 225-kg crate is pushed horizontally with a force of 710 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate. | 8. An 18.0-kg box is released on a 37.0° incline and accelerates down the incline at 0.270 m/s². Find the fric tion force impeding its motion. How large is the coeffi- cient of kinetic friction?
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