Question

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.

Answer 1

W = 132,167.7 J

Step-by-step 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 = -mgh \\W = -mgd \sin\theta`

`W= 333 * 9.8* 9 * (1)/(2)`

W = 132,167.7 J