Explore BrainMass

# Forces, free body diagrams, and work

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

Please give complete solutions step by step. Thanks again for helping me!

1. A box is touching the floor. The normal force of the floor on the box depends on... (see attachment for rest)

© BrainMass Inc. brainmass.com March 4, 2021, 6:03 pm ad1c9bdddf
https://brainmass.com/physics/acceleration/forces-free-body-diagrams-work-25925

#### Solution Preview

1.) Answer: C
To find the normal reaction of the ground, we take into consideration the vertical components of all the forces and equate to the mass*acceleration.

2.) Answer:C
The component of weight of the car along the hill = m*g*sin(18)
= 800*9.8*sin(18) = 2422.69 N downward
THerefore the friction force will be uphill and equal to this component.

3.) Answer : B
Because car ...

#### Solution Summary

This solution is provided in 286 words. It answers each question as well as provides a brief explanation as to how the answer was achieved.

\$2.49