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Original Question
What minimum speed does a 150g puck need to make it to the top of a 3.6m -long, 23 degree frictionless ramp?Asked by jamieson
what minimum speed does a 100g puck need to make it to the top of a 3m long 20degree frictionless ramp?
Answers
Answered by
drwls
Enough speed such that the initial kinetic energy (1/2)MV^2, equals the potential energy gain at maximum elevation, M g H.
M cancels out, so you don't need to know the mass. You DO need to calculate H. Use trigonometry.
M cancels out, so you don't need to know the mass. You DO need to calculate H. Use trigonometry.
Answered by
Navneet
mgh=1/2mv^2
To find h
sin 20= h/3
Put h and g in above equation and you are happpy :)
To find h
sin 20= h/3
Put h and g in above equation and you are happpy :)
Answered by
Noah
This sucked, terrible explanation
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