how can I calculate part 2

The initial speed to calculate the accelaration is 2 right??

B ca.prairielearn.com A small block of mass m : 0.5 kg is fired with an initial speed '00 : 2 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. Assessment overview 1 I ' I Total points: 30/31 v0 . Score: _6% m Question R History: 1 Total points: -/2 Auto-graded question Report an error in this question El Previous question \"I: Next question @ Attached files P 1 art No attached files Determine the force exerted by the track on the block at point A. F= 13.81 N a- Part 2 'he bottom of the track consists of a horizontal section (L = 12 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 resi p = None 0