How can I measure the total energy loss of a Newton's cradle until it comes to rest. The only variables I am given are the horiztonal displacements for each swing (how far the ball travels out after it rebounds off the other balls) and the angle. I have no idea where to start, I was told I...
Homework Statement
A woman pushes her 150kg motorcycle up a slope of 5 degrees with a constant speed of 2 m/s. She achieves this by exerting a force on the bike of 450N parallel to the slope. What is the magnitude of the frictional force acting on the bike?
Homework Equations
a=...
[SOLVED] Relative Motion
Homework Statement
Rami is running along the walkway so that his velocity relative to the ground is zero? How fast and in what direction is he running?
Homework Equations
V(a,b)= V(a) - V(b)
The Attempt at a Solution
V= 0- V(b)
I am not really a sure...
A car traveling with a constant speed of 80km/hr passes a stationary motorcycle policeman. The policeman sets off in pursuit, accelerating to 80km/hr in 10 seconds and reaching a constant speed of 100km/hr after a further 5 seconds. At what time will the policeman catch up with the car?
The...