Physics
posted by Alice .
A train initially travelling at 30ms^1 decelerates at 4ms^2.
(a) What time will it take to slow to 5m s^1?
(b) What distance will it have travelled when it has slowed to 5ms^1?

v =v₀at
t=( v₀v)/a =
s= v₀t  at²/2 =…
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