A plane mirror and an object approach each other with speeds of 2 m/s & 7 m/s then
find the speed of the image
1) 4 m/s
2) 7 m/s
3) 11 m/s
4) 9 m/s
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The speed of the image is 11 m/s and the direction is towards left.
Explanation:
Given data:
- Speed of plane mirror = 2 m/s
- Speed of the object = 7 m/s
Vi − Vm = Vm − V0
Vi − (−2) = (−2) − 7
Vi + 2 = - 9
Vi = − 9 - 2 m/s
Vi = - 11 m/s
Hence the speed of the image is 11 m/s and the direction is towards left.
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An object moves with 5 m/s towards right while mirror moves with 1 m/s towards the left as shown. Find velocity of image. ?
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