# Answer on Mechanics | Kinematics | Dynamics Question for Colton

Question #1060

A boy drags a box across the room with a strap at an angle of 25 degrees above the horizontal. The boy exerts a force of 10 N. If the mass of the box is 3 kg and the coefficient of kinetic friction is 0.1, what is the acceleration of the box?

## Expert's answer

II Newton's law for the box:

ma = F cos (25) - μ mg;

a = F/m cos(25) - μ g = 10/3 *cos(25) - 0.1*10 = 2.02 m/s^{2}

## Comments

### Ask Your question

## Related Questions

## Link to us

## Share with friends

Get homework help with Assignment Expert:

No comments

## Leave a comment