Asked by Sydney
A 4 kg crate slides down a ramp.the ramp 2.9 m in length and incline at an angle of 35 degress.the crate start from rest at the top and has a friction force of 3 n.what is the speed of the crate
Answers
Answered by
bobpursley
Better, what is the net force on the crate.
friction force up ramp: 3N
gravity force down ramp: mg*sin35
net force=gravity-friction = mass*acceleration
so acceleration= netforce/mass
Vf^2=Vi^2 + 2*acceleartion*distance
friction force up ramp: 3N
gravity force down ramp: mg*sin35
net force=gravity-friction = mass*acceleration
so acceleration= netforce/mass
Vf^2=Vi^2 + 2*acceleartion*distance
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