Force changes the shape and size of a body. It is proved during

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Deformation of clay

Squeezing of a plastic ball

Both 1 and 2

None

answer is C.

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Detailed Solution

Force changes the shape and size of a body. It is proved during deformation of clay and squeezing a plastic ball.
A force is defined as a push or a pull, which either causes or ceases motion in an object. It is also responsible for changing the direction of motion of a moving body. By the second law of motion, we know that a force is responsible for providing acceleration to a body which in turn alters the body's speed. An unbalanced force causes or ceases motion whereas a balanced force may alter the shape of a body. When we take clay into our hands and press it, the shape and size of clay can be changed. By squeezing a plastic bottle, we are changing the shape of the ball. Thus, they are examples of force that changes the shape and size of a body.

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