Question

A 2m wide truck is moving with a uniform speed v = 8 m/s 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

  • 2.62 m/s
  • 4.6 m/s
  • 3.57 m/s (Correct Answer)
  • 1.414 m/s

Answer is "3.57 m/s"

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