An automobile travelling with a speed of 60 kmh−1, can brake to stop within a distance of 20 m. if the car is going twice as fast, 𝑖𝑒. , 120 kmh−1 , the stopping distance will be

April 13, 2022

by Ezee_Notes

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Physics Problems

Question : An automobile travelling with a speed of 60 kmh−1, can brake to stop within a distance of 20 m. if the car is going twice as fast, 𝑖𝑒. , 120 kmh−1 , the stopping distance will be

(A) 20 m

(B) 40 m

(D) 80 m

Answer : option (D)

Solution :

An automobile travelling with a speed of 60 kmh−1, can brake to stop within a distance of 20 m. if the car is going twice as fast, 𝑖𝑒. , 120 kmh−1 , the stopping distance will be