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Original Question
A 50 kg crate is pushed at constant speed up the frictionless 31° ramp shown in the figure. A)What horizontal force F is requir...Asked by Tsion
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?
B)What force is exerted by the ramp on the crate?
B)What force is exerted by the ramp on the crate?
Answers
Answered by
Damon
90*9.81 * sin 34
90*9.81 * cos 34
90*9.81 * cos 34
Answered by
Tsion
Part A keeps be marked wrong. Is my answer supposed to be 493.7 N ?
Answered by
Damon
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
F up slope = F cos 30
F cos 34 = 90 * 9.81 * sin 34
F = 90*9.81 * tan 34
F = 596 N
Answered by
Damon
then on crate force of weight increased by F sin 34
90*9.81* cos 24 + 596 sin 34
= 1065 N
90*9.81* cos 24 + 596 sin 34
= 1065 N
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