Question

A marble rolling on a smooth floor has an initial velocity of 0.4 m/s. If the floor offers a retardation of 0.02 m/s2, calculate the time it will take to come to rest

Answer 1

becaus the forcing of the ball of 0.4 m/s
ok.

Answer 2

$0.4 + 0.2x \beta \alpha \cos( \beta \gamma )$