Question

A bus is travelling With the velocizy of 70 km/hr on seeing school children at to metre a head , the driver applies brakes stopped at the distance of 16 Meyer find the retardation produced produce and time taken to stop the bus​

Answer 1

Answer:

Final Velocity, v=0

Retardation, a=0.25ms  

−2

 

Time, t=20s

Using equation, v=u−at,  

we get u=5ms  

−1

 

∴ distance, s=ut−  

2

1

​  

at  

2

=(5×20)−(  

2

1

​  

×0.25×20  

2

)=50m

Explanation: hope this is helpful