Asked by Sidiqi
Starting from rest, a rope with a tension 30 N pulls a 2.0 kg box up a 2.0 m long, 30 degree smooth incline. What is the speed of the box at the top?
Please show steps! Thanks
Please show steps! Thanks
Answers
Answered by
bobpursley
assuming no friction.
breaking weight up into components, parallel to plane, normal to plane
Fp=mg*sinTheta
Fn=mg*cosTheta
without friction, Fp is the operating up/down plane.
Net force=m*a
30N-mg*SinTheta=m*a
so solve for a.
then,
Vf^2=2*a*d solve of Vf
breaking weight up into components, parallel to plane, normal to plane
Fp=mg*sinTheta
Fn=mg*cosTheta
without friction, Fp is the operating up/down plane.
Net force=m*a
30N-mg*SinTheta=m*a
so solve for a.
then,
Vf^2=2*a*d solve of Vf
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