# A 2 m wide truck is moving with a uniform speed 𝑣0 = 8ms−1 along a straight horizontal road. A pedestrian starts to cross the road with a uniform speed 𝑣 when the truck is 4m away from him. The minimum value of 𝑣, so that he can cross the road safely is

Question : A 2 m wide truck is moving with a uniform speed 𝑣0 = 8ms−1 along a straight horizontal road. A pedestrian starts to cross the road with a uniform speed 𝑣 when the truck is 4m away from him. The minimum value of 𝑣, so that he can cross the road safely is

(A) $2.62ms^{-1}$

(B) $4.6ms^{-1}$

(C) $3.57ms^{-1}$

(D) $1.414ms^{-1}$

Solution :

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