Doug hits a hockey puck,giving it an initial velocity of 6.0 m/s.If the coefficient of kinetic friction between ice and puck is 0.20,how far will the puck slide before stopping?
A)14 m
B)19 m
C)9 m
D)11 m
E)24 m

Question

Doug hits a hockey puck,giving it an initial velocity of 6.0 m/s.If the coefficient of kinetic friction between ice and puck is 0.20,how far will the puck slide before stopping?
A)14 m
B)19 m
C)9 m
D)11 m
E)​24 m

Quizplus · Accepted Answer

To solve this problem, we need to use the equation for the distance covered by an object under constant acceleration:

d = (v^2 / 2μg)

where d is the distance covered, v is the initial velocity, μ is the coefficient of kinetic friction, and g is the acceleration due to gravity (9.81 m/s^2).

Plugging in the given values, we get:

d = (6^2 / 2*0.20*9.81) = 9.18 m

Therefore, the puck will slide for a distance of approximately 9 m before stopping. Choice C is the best answer.

Doug Hits a Hockey Puck,giving It an Initial Velocity of 6.0