Hey can anyone help me with this question. i'll write it out as the book does and the topic we are doing is "dynamics of a particle in a straight line or plane":
a stone slides in a straight line across a frozen pond. given that the initial speed is 5ms(-1) and it slides 20m before coming to rest, calculate the coefficient of friction between the stone and the surface of the frozen pond.
we have used the formulas F = ma
and i know
v = 0
u = 5
s = 20
t = 8
a = 0.625
i'm just stuck of what to do now!!
help me please.
Thankyou.