m ha B 3.20 m 2.00 m
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A block of mass m = 4.90 kg is released from rest from point and slides on the frictionless track shown in the figure below. (Let ha = 6.30 m.)
An illustration shows a wavy track, starting from a crest, moving to a trough, then again to a crest and trough, and finally to a crest that then moves downward. Three points in the track are highlighted, A, B, and C. Point A is at the top of the track where an object of mass mis placed ready to get released. It is at the height labeled ha from the ground. Point B is shown at the next crest and is at a height of 3.20 meters from the ground. Point C is shown at the following trough and is at a height of 2.00 meters from the ground.
(a) Determine the block's speed at points B and C.
(b) Determine the net work done by the gravitational force on the block as it moves from point A to point C.
_______J
| vB | = m/s |
| vC | = m/s |
(b) Determine the net work done by the gravitational force on the block as it moves from point A to point C.
_______J
Transcribed Image Text:A
m
ha
B
3.20 m
2.00 m
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