Question

in the following situations identity the agent exerting the force also state the effect of the force in each case. (a) squeezing a piece of lemon between the fingers to extract it's juice. (B) a person diving into a swimming pool. (C) a labourer moving a loaded cart. (D) a car moving to rest once it's engine is switched off. (c) an athlete Making a high jump to clear a bar kept at a certain height​

Answer 1

Hi

a) Squeezing a piece of lemon between the fingers to extract its juice:

external agent --- Muscular force by fingers

Here the effect of muscular force is that its changing the shape and size of object and lemon juice being expelled by squeezing

b) A person diving into a swimming pool:

Agent used --- again Muscular force used by person

Here the effect of force is

→ state of rest is changed to motion--cart is brought into motion

c) A labourer moving a loaded cart.

agent used--- Muscular force

effect of force :

→ State of object is changed

→ direction of motion is changed.

d) A car coming to rest once its engine is switched off.

Agent used --- Muscular force of person to off engine

effect of force: Object in motion is brought to rest.

e)An athlete making a high jump to clear a bar kept at a certain height.:

agent used : muscular force of athlete

Effect of force:change in state of motion of Athlete

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