I NEED HELP PLEASE THANKS! Jenny is sitting on a sled on the side of a hill inclined at 15°. What force is required to keep the sled from sliding down the hill if the combined w…

Question

asked Oct 12, 2021 230k views

1 Answer

CyberAleks · Answer 1 · 2021-10-19T06:27:51+0000

Answer:

23.29 lbs

Explanation:

The force on Jenny due to gravity can be resolved into components perpendicular to the hillside and down the slope. The down-slope force is ...

(90 lbs)sin(15°) ≈ 23.29 lbs

In order to keep Jenny in position, that force must be balanced by an up-slope force of the same magnitude.