a plane mirror is moving with velocity 4i+5j+8k. a point object in front of the mirror moves with a velocity 3i+4j+5k. here k is normal to plane mirror and facing towards object. velocity of image is?
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Given:
The velocity of the plane mirror v=4i+5j+8k
The velocity of mirror move is v=3i+4j+5k
To find:
The velocity of the image.
Solution:
The k is the normal to the plane mirror
Therefor the k component the mirror is not moving
V= -5k
When the mirror starts moving the velocity becomes
V=8×2k=16k
Therefore the resultant velocity be 16k-5k=11k
The velocity of the image be
v= 3i+4j+11k
So, the correct velocity be 3i+4j+11k
Answered by
0
Answer:
3i+4j+
11k
Explanation:
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