In a shuffleboard game,the puck slides a total of 12 m before coming to rest.If the coefficient of kinetic friction between the puck and board is 0.10,what was the initial speed of the puck?
A)4.8 m/s
B)48.5 m/s
C)3.8 m/s
D)4.3 m/s

Question

Quizplus · Accepted Answer

The work done by friction is equal to the initial kinetic energy of the puck. Using the formula for work done by friction (friction force * distance) and equating it to the initial kinetic energy (0.5 * mass * initial speed^2), we can solve for the initial speed. The friction force is the product of the coefficient of kinetic friction, the mass, and gravity. Solving this gives an initial speed of approximately 4.8 m/s.

In a Shuffleboard Game,the Puck Slides a Total of 12