# A force slides a crate across a level floor. Find the maximum force and acceleration.

SEE ATTACHMENT #1 for a diagram showing parameters.

A box whose mass is 5 kg is on a frictionless horizontal surface. A force P is applied to the box in a direction 25 degrees above horizontal.

PART a. Find the maximum value of P for which the box stays in contact with the floor.

PART b. Find the acceleration when this force is applied.

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#### Solution Preview

PART a. Step 1.

Creating or observing a careful diagram should be the first step of a solution. Observing ATTACHMENT #1, you note that the only forces on the box are P, N, and M g. ...

#### Solution Summary

The expert finds the maximum force and acceleration of a sliding crate. The frictionless horizontal surface is given.

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