Momentum and CollisionMedium
Question
A bead of mass m and diameter d is sliding back and forth with velocity v on a wire between two rigid walls of length L. Assume that the collisions with the wall are perfectly elastic and three is no friction. The average force that the bouncing bead exerts on the one of the walls is
Options
A.
B.
C.
D.
Solution
ᐃp = change momentum = 2mv
ᐃt = time between two collision =
∴ Force exerted on wall
=
ᐃt = time between two collision =
∴ Force exerted on wall
=
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