A)A 90 kg crate is pushed at constant speed up the frictionless 34° ramp shown in the figure. What horizontal force F is required?

Question

B)What force is exerted by the ramp on the crate?

Answer 1

90*9.81 * sin 34

90*9.81 * cos 34

Answer 2

Part A keeps be marked wrong. Is my answer supposed to be 493.7 N ?

Answer 3

oops. I did not see force had to be horizontal

F up slope = F cos 30
F cos 34 = 90 * 9.81 * sin 34
F = 90*9.81 * tan 34
F = 596 N

Answer 4

then on crate force of weight increased by F sin 34

90*9.81* cos 24 + 596 sin 34
= 1065 N