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A bus is moving with a velocity of 30km/h. on applying the brakes it stops at a distance of 10m. calculate the time taken to stop the bus. AND ANSWER IS 0.8seconds |
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Answer» are given that, the bus is moving with a Initial Velocity (U) = 30 km/hr and bus stops when brakes are applied THEREFORE, the Final Velocity (v) will be 0 m/s and distance (s) is given as 10 m. and we are asked to find the time TAKEN to stop the bus.To solve this QUESTION first we have to make the UNITS same. So, convert the initial velocity (u) from km/hr to m/s :So, we have converted the units to m/s and now we will find the acceleration (a) of the bus by using third kinematical equation of motion :Now, by using first kinematical equation of motion we can calculate the time taken by the bus : |
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