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An elevator starts from rest with a cons...

An elevator starts from rest with a constant upward acceleration. It moves 5 m in the first 2 s. A passenger in the elevator is holding a 4 kg package by a vertical string. Find the tension in the string during the acceleration process in N.

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Knowledge Check

  • An elevator starts from rest with a constant upward acceleration it moves 2m in the first 0.6 second. A passenger in the elevator is holding a 3 kg package by a vertical string When the elevator is moving What is the tension in the string?

    A
    4 N
    B
    `62.7 N`
    C
    `29.4 N`
    D
    `20.6 N`

  • An elevator is accelerating upwards with a constant acceleration a ms^-2 . If a coin is dropped in it by a passenger, then.

    A
    the coin starts to fall downwards instantaneously as observed by the passenger.
    B
    the coin starts to fall downwards instantaneously as observed by a ground observer.
    C
    first, coin continues to move up with same acceleration of a `ms^-2` for some time and then starts falling with gravitational acceleration as observed by a ground observer.
    D
    None of these

  • An elevator is moving vertically up with a acceleration a the force exerted on the floor by a passenger of mass m is

    A
    mg
    B
    ma
    C
    mg - ma
    D
    mg + ma

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    An elevator is moving vertically upward with an acceleration of g . The force exerted on the floor by the passenger of mass m will be

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