Question : A car moving with a velocity of 10 𝑚/𝑠 can be stopped by the application of a constant force 𝐹 in a distance of 20 𝑚. If the velocity of the car is 30 𝑚/𝑠. It can be stopped by this force in
(A) 20/3 𝑚
(B) 20𝑚
(C) 60𝑚
(D) 180𝑚
Answer : option (D)
Solution :
