How come the initial energy is PE+KE? I thought originally the box was sliding down so all energy is KE and then it comes to a stop so all energy is PE
Oh I see now
So I can set up the equation like this:
1/2mv2-mgh=μmgCosθ
Isolating for μ:
μ=(v2/2-gh)/gcosθ
μ=(6m/s2/2-(9.80 m/s2)(11m))/(9.80 m/s2)cos 20°
μ=-9.75
Is this correct?
Okay so use
1/2*m*v2=m*g*h
and I solve for m, this way then I can find gravity and find the two components of gravity. The y component of gravity will give the normal force. But then how do i find the kinetic friction?
Homework Statement
A block slides down a hill. The hill has a gentle 20° slope with respect to
the horizontal. The block has an initial speed of 6 m/s. If the block comes to a stop
after traveling a total distance of 11 m along the slope, what is the coefficient of kinetic
friction between the...
I am having trouble solving these vertical motion problems, please attempt to solve these and explain/show solution so that I can follow
1.A helicopter, which is rising vertically at 20 m/s is 25 m from the ground when an object is dropped from it. How high will the object rise after it is...