Horizontal frictionless track#

A small block of mass m = 0.75 kg is fired with an initial speed \(v_0\) = 9 m/s along a horizontal section of frictionless track, as shown in the top portion of the figure. The block then moves along the frictionless semicircular vertical track of radius \(R\) = 0.5m.

Mass on frictionless track.

Part 1#

Determine the force exerted by the track on the block at point A.

Answer Section#

Please enter in a numeric value in N.

Part 2#

The bottom of the track consists of a horizontal section (L = 15 m) with friction. Determine the coefficient of kinetic friction between the block and the bottom portion of the track if the block just makes it to point B before coming to rest.

Answer Section#

Please enter in a numeric value.


Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.