Posted by **nm** on Tuesday, March 8, 2011 at 8:09pm.

A wooden box weighing 281 N is pushed across the floor by a workman who exerts a horizontal force of 166 N. If the force of friction between the box and the floor is 21 N, what is the acceleration (in meters/second^2) of the box?

- physics -
**julymoe**, Wednesday, March 9, 2011 at 2:46am
the force that are acting on the box are1)normal force, gravational force, horizontal force, friction force. If you want to find the a, use the eq of new ton laws. F=MA. For the force you need to add friction force and horizontal force. But you dont know the mass of the object. So u need to find the mass by N-mg=0. After that plug in mass in the first eq and solve it. GOOD LUCK.

## Answer this Question

## Related Questions

- physics - A wooden box weighing 271 N is pushed across the floor by a workman ...
- physics - wooden box weighing 271 N is pushed across the floor by a workman who ...
- Physics - A box of books weighing 337 N is shoved across the floor by a force of...
- physics - A box of books weighing 314 N is shoved across the floor by a force of...
- Physics help! - A box of books weighing 323 N is shoved across the floor by a ...
- Physics - A box of books weighing 337 N is shoved across the floor by a force of...
- physics - A 5-kg box is pushed across a horizontal floor by a 20-N force that is...
- Physics - A box weighing 600 N is pushed along a horizontal floor at a constant ...
- College Physics! - Is there any way i can just get these problems set up? I just...
- physics - A 33.0 kg box initially at rest is pushed 5.95 m along a rough, ...