## The force of friction acting on a sliding crate is 223 N. How much force must be applied to main- tain a constant velocity?

Question

The force of friction acting on a sliding crate is 223 N.
How much force must be applied to main- tain a constant velocity?

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6 months 2021-07-22T02:13:02+00:00 1 Answers 5 views 0

## Answers ( )

Friction Opposes Motion of an Object.

Now

To get the Net force that Moves an Object and causes acceleration….You subtract the Frictional force

Net force = Pushing Force – Frictional Force

Recall

Net Force; F=Ma

Ma = P – Fr

Now the question asked for How Much force Must be applied to Maintain a Constant velocity.

In a Constant Velocity Motion… Acceleration do not change… Its Zero

So Putting this into the formula above

M(0) = P – Fr

0=P – Fr

Fr = P.

This means

That The force needed to keep this object Moving at Constant Velocity Must be equal to its Frictional Force

Since Frictional Force; Fr =223N

The Applied Force(Pushing Force) Must be equal to 223N too.