Question

If a bus travelling at 20m/s2, how long will it take to come to rest I don't know who come in my life please explain

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Answer 1

Answer:

For the bus,

Initial Velocity, u = 20 m/s

Final Velocity, v = 0 m/s

Acceleration, a = -5m/s² (minus sign because of deceleration)

Time, t = (?)

We know that,

a = (v - u)/t

∴t = (v - u)/a

∴t = (0 - 20)/(-5)

∴t = (-20)/(-5)

∴t = 4s

Thus, the bus will take 4 seconds to stop

aap guess karlo kaun h aapke life me