a. acceleration=deltaV/time=(5.5-14)/5
b. F=ma
mu*mg=ma
mu=a/g
c. how far?
d=vi*t+1/2 a t^2=14*5-1.7/2 * 25
A hockey puck is hit on a frozen lake and starts moving with a speed of 14.0 m/s. Five seconds later, its speed is 5.50 m/s.
(a) What is its average acceleration?
m/s2
(b) What is the average value of the coefficient of kinetic friction between puck and ice?
(c) How far does the puck travel during the 5.00 s interval?
m
for a) i got -1.70m/s^2
b) i need help
c) i got 48.8m
so can anyone help me with What is the average value of the coefficient of kinetic friction between puck and ice?
1 answer