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Explain why a horse cannot pull a cart a...

Explain why a horse cannot pull a cart and run in empty space.

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While trying to pull a cart, a horses pushes the ground backwards with a certain force at an angle. The ground offers an equal reaction in the opposite direction on the feet of the horse. The forward component of this reaction is responsible for the motion of the cart. In empty space, there is no reaction and hence a horse can not pull the cart and run.
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Explain why (a) a horse cannot pull a cart and run in empty space , (b) passengers are thrown forward from their seats when a speeding bus stops suddenly , (c ) it is easier to pull a lawn power than to push it . (d) a cricketer moves his hands backwards while holding a catch .

Explain why (a) a horse cannot pull a cart and run in empty space, (b) passengers are thrown forward from their seats when a speeding bus stops suddenly, (c) it is easier to pull a lawn mower than to push it, (d) a cricketer moves his hands backwards while holding a catch.

Knowledge Check

  • (A)A horse cannot pull cart and run in empty space ( R) : The mutual action- reaction forces between the horse and cart get cancelled

    A
    Both (A) and (R) are true and (R) is the correct explanation of (A)
    B
    Both (A) and (R) are true and (R) is not the
    C
    (A) is true but ( R) is false
    D
    Both (A) and (R ) are false

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