Question

# If a bus travelling at 20 m/s is subjected to a steady deceleration of 5 m/s2, how long will it take to come to rest ?

Solution

## Deceleration, a=$$-5m/s^2$$ Initial velocity, u=$$20m/s$$ Final velocity, v=$$0m/s$$ t=? Using the equation:$$t=\dfrac{v-u}{a}$$$$t=\dfrac{0-20}{-5}$$$$t=4\ s$$Physics

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