Homework Statement
A force is applied tangentially to a rigid body on a horizontal surface.if it doesn't slip find the frictional force
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Homework EquationsThe Attempt at a Solution
The solution tells us to take axis about the bottommost point in contacy with the surface...
Homework Statement
A particle of charge -q and mass m enterd magnetic field B at A with speed v1 at an angle alpha and leaves the field at C with v2 at angle beta.Then,
a)alpha=beta
b)v1=v2
c)particle remains in the field for time t=(2m(pi-alpha))/qB
d)All of these
Please see image below...