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A 3 m long car goes past a 4 m long truck at rest on the road. The speed of the car is 7 m/s. The time taken to go past is
Question

A 3 m long car goes past a 4 m long truck at rest on the road. The speed of the car is 7 m/s. The time taken to go past is

A.

4/7 s

B.

1 s

C.

7/4 s

D.

10/7 s

Correct option is B

Given:

  • Length of the car = 3 m
  • Length of the truck = 4 m
  • Speed of the car = 7 m/s
  • Truck is at rest

Formula Used:
Time taken to pass = Total distance / Speed
Total distance = Length of car + Length of truck

Solution:
Total distance = 3 + 4 = 7 m
Speed = 7 m/s
Time = 7 / 7 = 1 second

Correct Option: (B) 1 s

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