Explain why: (a) a horse cannot pull a cart and run in empty space, (b

1.	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 mover than to push it, (d) a cricketer moves his hands backwards while holding a catch.
Answer» (a) No reaction is available in empty space. (b) Inertia of motion (c) During pull, the effective weight is reduced due to the vertical component of the pull. In the case of push, the vertical component increases the effective weight. (d) By increasing time, force is reduced.

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 mover than to push it, (d) a cricketer moves his hands backwards while holding a catch.

Answer»

(a) No reaction is available in empty space.

(b) Inertia of motion

(c) During pull, the effective weight is reduced due to the vertical component of the pull. In the case of push, the vertical component increases the effective weight.

(d) By increasing time, force is reduced.

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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 mover than to push it, (d) a cricketer moves his hands backwards while holding a catch.

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