7) A 12 kg box is at rest at the top of a ramp (point A). The length of the ramp is 8.0 m long, and it is tipped at a 30° angle. The box starts sliding with friction between the surfaces, moving down, and eventually leaves the ramp at velocity v, moving horizontally (point B). If the thermal energy generated during this process is 176.4 J, what is the velocity of the box at point B? 30 i
7) A 12 kg box is at rest at the top of a ramp (point A). The length of the ramp is 8.0 m long, and it is tipped at a 30° angle. The box starts sliding with friction between the surfaces, moving down, and eventually leaves the ramp at velocity v, moving horizontally (point B). If the thermal energy generated during this process is 176.4 J, what is the velocity of the box at point B? 30 i
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Transcribed Image Text:7) A 12 kg box is at rest at the top of a ramp (point A). The length of the ramp is 8.0 m long, and
it is tipped at a 30° angle. The box starts sliding with friction between the surfaces, moving down,
and eventually leaves the ramp at velocity v, moving horizontally (point B). If the thermal energy
generated during this process is 176.4 J, what is the velocity of the box at point B?
Sm
Ni
30
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