A plane mirror is moving with $$velocity4i^+5j^+8k^$$ . A point object in front of the mirror moves with a $$velocity3i^+4j^+5k^$$ . Here $$k^$$ is along the normal to the plane mirror and facing toward the object. The velocity of the image is

Correct option is 23i^+4j^+11k^

Questions

A plane mirror is moving with velocity $4 \hat{i} + 5 \hat{j} + 8 \hat{k}$ . A point object in front of the mirror moves with a velocity $3 \hat{i} + 4 \hat{j} + 5 \hat{k}$ . Here $\hat{k}$ is along the normal to the plane mirror and facing toward the object. The velocity of the image is

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−3i^+4j^+5k^

3i^+4j^+11k^

−3i^+4j^+11k^

7i^+9j^+11k^

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detailed solution

Correct option is B

Along normal: Applying Vi/m=−V0/m⇒Vi=2Vm−V0 =2×8−5=11 In other direction, Vi=V0

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A plane mirror is moving with velocity4i^+5j^+8k^ . A point object in front of the mirror moves with a velocity3i^+4j^+5k^ . Here k^ is along the normal to the plane mirror and facing toward the object. The velocity of the image is

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Ready to Test Your Skills?

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A plane mirror is moving with velocity $4 \hat{i} + 5 \hat{j} + 8 \hat{k}$ . A point object in front of the mirror moves with a velocity $3 \hat{i} + 4 \hat{j} + 5 \hat{k}$ . Here $\hat{k}$ is along the normal to the plane mirror and facing toward the object. The velocity of the image is