The Student Room Group

physics

a bus decreases its speed from 80km/hr to 60km/hr in 5 sec find the acceleration of bus
In meters per second squared?
a = dv/dt --> a = v-u / t.

v = final velocity
u = initial velocity
t = time

I'm assuming the required unit is ms^-2 so use that formula.
Remember to divide by 3.6 to convert it from km/h to m/s, preferably before anything else to avoid mistakes.

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