A force of 9 lb is required to hold ​35lb crate on a hill. What angle does the hill make with the​ horizontal?

Step-by-step explanation:

Given

Applied force is 9 lb to hold of 35 lb crate on a hill

Suppose the hill makes an angle of with horizontal

There will be two component of weights i.e. along and perpendicular to the hill

Only the component along the hill pulls the crate backwards

So,

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e