A driver applies the brakes on seeing the red traffic single 400 ~m ahead. At the time of applying the brakes, the vehicle was moving with 15 ~m / s and retarding at 0.3 ~m / s ^2 . The distance covered by the vehicle from the traffic light

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A driver applies the brakes on seeing the red traffic single 400 ~m ahead. At the time of applying the brakes, the vehicle was moving with 15 ~m / s and retarding at 0.3 ~m / s ^2 . The distance covered by the vehicle from the traffic light 1 minute after the application of brakes is

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Correct answer: C. 40 m

aligned & u =15 ~m / s , a =-0.3 ~m / s ^2, t =60 ~s & ~s = ut + 1 2 at ^2 & =15 60+ 1 2 (-0.3) (60)^2 & =900-540=360 ~m aligned Distance from traffic light =400-360=40 ~m

A driver applies the brakes on seeing the red traffic single 400 ~m ahead. At the time of applying the brakes, the vehicle was moving with 15 ~m / s and retarding at 0.3 ~m / s ^2 . The distance covered by the vehicle from the traffic light 1 minute after the application of brakes is

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