Question

If a 100-lb. cake of ice is placed on a plane of which the inclination to the horizontal is 35, what force will be required to keep it from sliding down the plane?

Answer 1

Answer: 57.36 lbs.

Step-by-step explanation: 100sin(35)≈57.36

Answer 2

F = 100(.5736)
= 57.36 lbs. (rounded off to 2 decimal places)

2) sin60 = .866
F = 18(.866)
= 15.59 lbs. (rounded off to 2 decimal places)