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A bus slows down uniformly from 51.3 km/h (14.3 m/s) to 0 km/h in 16 s. How far does it travel before stopping?

answer has to be in seconds.

2006-09-18 15:38:51 · 2 answers · asked by tingerpoo 2 in Science & Mathematics Mathematics

2 answers

initial velocity=14.3 m/s
final velocity=0
v=u-at
0=14.3+a*16
a=-14.3/16
v^2=u^2+2as
0=(14.3)^2+2(-14.3/16)s
s=-14.3*14.3/2(-14.3/16)
=14.3*8 metres= 114.4m

2006-09-18 15:50:51 · answer #1 · answered by raj 7 · 0 0

You want distance to be measured in seconds? Not possible. Distance and time are not the same measurements.

Anyway, the answer in meters is

1/2*(14.3 * 16) = 114.4 m

2006-09-18 22:50:24 · answer #2 · answered by ali 6 · 0 0

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