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JEE Main & Advanced Physics Motion in a Straight Line / सरल रेखा में गति Question Bank Uniform Motion

  • question_answer
    A 150 m long train is moving with a uniform velocity of 45 km/h. The time taken by the train to cross a bridge of length 850 meters is                             [CBSE PMT 2001]

    A)         56 sec

    B)                 68 sec

    C)         80 sec

    D)                92 sec

    Correct Answer: C

    Solution :

                Total distance to be covered for crossing the bridge              = length of train + length of bridge             \[=150m+850m=1000m\]             \[\text{Time }=\frac{\text{Distance }}{\text{Velocity }}=\frac{1000}{45\times \frac{5}{18}}=80\ sec\]


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