Question

In the following situations, identify the agent exerting the force and the object on which it acts, State the effect of the force in each case.

Squeezing a piece of lemon between the fingers to extract its juice.
(b) Taking out paste from a toothpaste tube.
(c) A load suspended from a spring while its other end is on a hook fixed.
(d) An athlete making a high jump to clear the bar at a certain height.​

Answer 1

Answer:

(a) Squeezing a piece of lemon between the fingersto extract its juice.

Answer 2

$\Large\bf\underline\blue{Question}$

In the following situations, identify the agent exerting the force and the object on which it acts, State the effect of the force in each case.

$\Large\bf\underline\red{Answer}$

Situation given:-

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

Result:-

a)In squeezing a piece of lemon, we make use of muscular force to extract its juice. This muscular force acts on the lemon. As a result, the shape of the lemon gets changed.

Situation given:-

Taking out paste from a toothpaste tube.

Result:-

b)We use our muscular force to take out paste from a toothpaste tube. The muscular force acts on the toothpaste tube. As a result, the shape of the tube gets changed.

Situation given:-

A load suspended from a spring while its other end is on a hook fixed.

Result:-

(c) Here, the suspended load exerts a force on the spring and pushes the spring downwards. As a result, the spring gets stretched. Hence, its shape gets changed.

Situation given:-

An athlete making a high jump to clear the bar at a certain height.

Result:-

d)An athlete pushes the ground with his feet. His feet exert a muscular force on the ground. This allows him to jump over the bar. As a result, his state of motion gets changed.

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