what is balanced and unbalanced force | class 9 ncert ch 9 | force and laws of motion class 9 |

Balanced And Unbalanced Forces

What are unbalanced forces?

(a) What do you understand by the terms "balanced forces" and "unbalanced forces" ? Explain with examples. (b) What types of forces-balanced or unbalanced-act on a rubber ball when we press it between our hands ? What effect is produced in the ball ?

Which of the two, balanced forces or unbalanced forces, can change the shape of an object ? Give an example to illustrate your answer.

(a)Which forces- balanced or unbalanced can change the state of a body? (b)what is measure of inertia of a body in linear motion?

'An unbalanced external force is needed to initiate the motion from state of rest but no unbalanced net force is needed to sustain the uniform motion.' Read the statement made by Galileo and justify

(a) What are balances forces? (b)What are unbalances forces?

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