In the following situation identify the agent exerting the force and the object on which it acts. State the effect of the force in each case.
(a) 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 a hook fixed to a wall.
(d) An athlete making a high jump to clear the bar at a certain height.
Answers
❄ 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.
✦ Taking out paste from a toothpaste tube.
✦ A load suspended from a spring while its other end is on a hook fixed to a wall.
✦ An athlete making a high jump to clear the bar at a certain height
_______________
☞ We make a muscular force to extract the juice of the lemon by squeezing it. As a result, the shape of the lemon gets changed.
☞ To take out paste from the toothpaste tube we use our muscular force. This muscular force acting on the toothpaste tube leads to a change of its shape.
☞ 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.
☞ The feet of the athlete exert the muscular force on the ground, which pushes the ground. This allows him to jump over the bar. As a result, his state of motion gets changed.
Answer:
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