A bus decreases its speed from 100 km/hr to 60 km/hr. Calculate it acceleration.
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I could not know the answer can you explain it
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U= initial velocity= 80 km/h = 22.2 m/s
v= final velocity = 60 km/h = 16.7 m/s
t= time = 5 s
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We have to find a= acceleration = ?
Formula
v = u+at
a = v – u/t
a = 16.7 – 22.2/5
= -5.5/5
Therefore, acceleration a = -1.1 m/s2
The negative sign implies that the velocity is decreasing.
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