- #1
TheKovac
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Homework Statement
A bicycles accelerates from rest, covering 16 metres in 4 seconds. The total mass of the bicycle and its rider it 90kg. What is its average acceleration during this time?
Homework Equations
x = ut + 0.5at^2
v=xt
a=vt
The Attempt at a Solution
v = x/t
v = (16)/(4)
v = 4 m/s
F = mv/t
F = (90)(4)/4
Fnet = 90N
Fnet = ma
90 = 90a
A= 1 m/s^2 <--WRONG! - How?
A=2ms <--- RIGHT