A particle is moving in free space with some velocity as shown. It is applied by force F→$$1$$,F→$$2$$ and F→$$3$$ of magnitude $$10N$$, $$10N$$ and $$15N$$ respectively :

Correct option is 3its velocity changes in both magnitude and direction

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A particle is moving in free space with some velocity as shown. It is applied by force ${\vec{F}}_{1}, {\vec{F}}_{2} a n d {\vec{F}}_{3}$ of magnitude 10N, 10N and 15N respectively :

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its velocity changes only in magnitude

its velocity changes only in direction

its velocity changes in both magnitude and direction

its velocity remains constant

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detailed solution

Correct option is C

Velocity makes some angle with resultant F , thus both magnitude and direction changes.

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A particle is moving in free space with some velocity as shown. It is applied by force F→1,F→2 and F→3 of magnitude 10N, 10N and 15N respectively :

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A particle is moving in free space with some velocity as shown. It is applied by force ${\vec{F}}_{1}, {\vec{F}}_{2} a n d {\vec{F}}_{3}$ of magnitude 10N, 10N and 15N respectively :