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A horse pulls a cart with constant force...

A horse pulls a cart with constant force so that the cart moves with a constant speed.
Will the speed of the cart increase,decrease or remain the same if the horse applied more force?

Answer

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Knowledge Check

  • The distance between two particles moving towards each other is decreasing at the rate of 6 m/s. If these particles travel with same speed and in the same direction then the separation increase at the rate of 4 m/s. The particles have speed as

    A
    5 m/s, 1 m/s
    B
    4 m/s, 1 m/s
    C
    4 m/s, 2 m/s
    D
    5 m/s, 2 m/s

  • A car travelling at a constant speed of 30 m/s passes a highway patrolcar, which is at rest. The police officer accelerates at a constant rate of 3 m/s and maintains this rate of acceleration until he pulls next to the speeding car. Assume that the police car starts to move at the moment the speeder passes the police car What is the time required for the police officer to catch the speeder?

    A
    20s
    B
    10s
    C
    25s
    D
    30s

  • A cart is moving horizontally along a straight line with constant speed 30m/s. A projectile is to be fired from the moving a cart is such a way that it will return to the cart after the cart has moved 80 m. At what speed (relative to the cart) and at what angle (to the horizontal) most the projectile be firedd?

    A
    `10sqrt(8)` m/s at `45^(@)`
    B
    `10sqrt(8)` m/s at `cos^(-1)(3/(sqrt(8)))`
    C
    `(40/3)` m/s at`90^(@)`
    D
    None of these

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    Consider the following statements about the blocks shown in the diagram that are being pushed by a constant force on a frictionless table A) All blocks move with the same acceleration. B) The net force on/each block is the same. Which of these statements are/is correct?

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