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A body with mass 5 kg is acted upon by a force $\vec{F} = (- 3 \hat{i} + 4 \hat{j}) N$ If its initial velocity at t = 0 is $\vec{v} = (6 \hat{i} - 12 \hat{j}) {ms}^{- 1}$ , the time at which it will just have a velocity along the y-axis is :

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Correct option is B

By impulse momentum theorem According to question in x-directionFxΔt=m0−ux(-3)Δt=5(0−6)Δt=10s

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A body with mass 5 kg is acted upon by a force F→=(−3i^+4j^)N If its initial velocity at t = 0 is v→=(6i^−12j^)ms−1 , the time at which it will just have a velocity along the y-axis is :

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Ready to Test Your Skills?

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A body with mass 5 kg is acted upon by a force $\vec{F} = (- 3 \hat{i} + 4 \hat{j}) N$ If its initial velocity at t = 0 is $\vec{v} = (6 \hat{i} - 12 \hat{j}) {ms}^{- 1}$ , the time at which it will just have a velocity along the y-axis is :