An object is moving towards a mirror with a velocity of 10 m s -l as shown in the figure. If the collision between the mirror and the object is perfectly elastic, then the velocity of the image after collision with mirror in vector form is
A
-10 
B
-10co s 15 
+ 10sin 15 
+ 10sin 15
C
-10 
D
-10cos30 
- 10sin30 
- 10sin30
Text Solution
Verified by ExpertsThe correct answer is:
D
-10cos30 
- 10sin30 
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