A 333 kg box is pulled 9.00 m up a 30 ° frictionless, inclined plane by an external force of 4575 N that acts parallel to the plane.
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Ответ:
W = 132,167.7 J
Explanation:
given
mass = 333 kg
distance = 9.00 m
angle = 30°
external force = 4575 N (parallel to plane )
(1) work done by the external force.
w = f.d
w = 4575 × 9 = 41175 J
(2) work done by gravity.
W = 132,167.7 J
Ответ:
a
Explanation: