Question

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

Answer 1

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Answer 2

firstly the given information is that the bus is travelling with a velocity 20 metre per second and then suddenly the bus comes a declaration of 5 metre per second square means 5 metre per second square is equal to vminus u /t and u =20 m/s and a=-5m/square and v equal to 0 m/s by using the method in above picture we conclude that the is equal to 4 second