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Final Velocity....
Problem: A hockey puck is given an initial velocity of 40.0 m/s
along the ice. Find the speed of the puck 1.00 s later if
the coefficient of kinetic friction (U) between puck and ice is
0.600. (HINT: The result is independent of the mass of
the puck.)
My solution:
1. sum of forces in y direction = N  W = 0
2. sum of forces in x direction = p  f = (a)
p  (U)(N) = a
p  (0.600)(g) = a
p  5.88 = a
( I need to know what "a" is in order to solve for final velocity but I am doing something wrong... please help)
PS. is my body diagram correct?
Problem: A hockey puck is given an initial velocity of 40.0 m/s
along the ice. Find the speed of the puck 1.00 s later if
the coefficient of kinetic friction (U) between puck and ice is
0.600. (HINT: The result is independent of the mass of
the puck.)
My solution:
1. sum of forces in y direction = N  W = 0
2. sum of forces in x direction = p  f = (a)
p  (U)(N) = a
p  (0.600)(g) = a
p  5.88 = a
( I need to know what "a" is in order to solve for final velocity but I am doing something wrong... please help)
PS. is my body diagram correct?
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