Question
A 61 - kg ice skater coasts with no effort for 61 m until she stops. If the coefficient of kinetic friction between her skates and the ice is μk=0.10, how fast was she moving at the start of her coast?
Answers
bobpursley
vf^2=vi^2+2ad
and a=force/mass=mu*mg/m=mu*g
solve for vi
and a=force/mass=mu*mg/m=mu*g
solve for vi