Share

## Mary applies a force of 73 N to push a box with an acceleration of 0.48 m/s^2. When she increases the pushing force to 84 N, the box’s accel

Question

Mary applies a force of 73 N to push a box with an acceleration of 0.48 m/s^2. When she increases the pushing force to 84 N, the box’s acceleration changes to 0.64 m/s^2. There is a constant friction force present between the floor and the box.

Required:

a. What is the mass of the box?

b. What is the coefficient of kinetic friction between the floor and the box?

in progress
0

Physics
3 years
2021-07-16T18:04:16+00:00
2021-07-16T18:04:16+00:00 1 Answers
10 views
0
## Answers ( )

Answer:Explanation:Mary applies a force of 73 N to create an acceleration of

When She increases force to 84 N, it creates an acceleration of

Friction opposes the motion of box

Subtract (i) from (ii)

Therefore friction is

Here, friction is kinetic friction which is given by