Physics, 12.11.2019 00:31 christinaruckepegvlp
Consider three scenarios in which a particular box moves downward under the pull of gravity :
(a) in scenario a, the box falls straight down from an initial height h to the ground under the influence of gravity.
(b) in scenario b, the same box, starting from the same initial height, h, slides down to the ground along a frictionless ramp that makes an angle of 30° with the horizontal.
(c) in scenario c, the same box, starting from the same initial height, h, slides down to the ground along a rough ramp with friction that makes an angle of 30° with the horizontal.
let w a gravity be the work done by gravity on the box in scenario a, let wb gravity be the work done by gravity on the box in scenario b, and let wc gravity be the work done by gravity on the box in scenario c.
which of the following is true? select the correct
1. o wa, gravity > wb, gravity > wc, gravity
2.o wc, gravity > wb, gravity > wa, gravity
3.o wb, gravity > wc, gravity > wa, gravity
4.o wa, gravity > wc, gravity > wb; gravity
Answers: 3
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Consider three scenarios in which a particular box moves downward under the pull of gravity :
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