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An observer is standing inside a lift mo...

An observer is standing inside a lift moving upwards with an acceleration a. A mass m is lying on the floor of the lift. Find the normal reaction between the block and the floor.

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To solve the problem of finding the normal reaction between the block and the floor of the lift, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Forces Acting on the Mass:** - The mass \( m \) experiences two primary forces: - The gravitational force acting downwards, which is \( mg \) (where \( g \) is the acceleration due to gravity). - The normal force \( N \) acting upwards from the floor of the lift. ...
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A lift is going up with an acceleration 2 g. A man is inside the lift and his mass is m What will be the reaction of the floor on the man ?

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Knowledge Check

  • A lift is moving with constant acceleration upwards. The mass of the object in the lift

    A
    increases
    B
    decreases
    C
    remains same,
    D
    will be zero.

  • A man of weight W is standing on a lift which is moving upward with an acceleration a. The apparent weight of the man is

    A
    `W(1+a/g)`
    B
    `W`
    C
    `W(1-a/g)`
    D
    `W(1-(a^(2))/(g^(2)))`

  • A man weighing 60 kg is in a lift moving down with an acceleration of 1.8" ms"^(-2) . The force exerted by the floor on him is

    A
    588 N
    B
    480 N
    C
    Zero
    D
    696 N

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