Question : A car of mass 800 𝑘𝑔 moves on a circular track of radius 40 𝑚. If the coefficient of friction is 0.5, then maximum velocity with which the car can move is
(A) 7 𝑚/𝑠
(B) 14 𝑚/𝑠
(C) 8 𝑚/𝑠
(D) 12 𝑚/s
Answer : option (B)
Solution :
A car of mass 800 𝑘𝑔 moves on a circular track of radius 40 𝑚. If the coefficient of friction is 0.5, then maximum velocity with which the car can move is
with
no comment