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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a
−3i^+4j^+5k^
b
3i^+4j^+11k^
c
−3i^+4j^+11k^
d
7i^+9j^+11k^
answer is B.
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Detailed Solution
Along normal: Applying Vi/m=−V0/m⇒Vi=2Vm−V0 =2×8−5=11 In other direction, Vi=V0