A point object is moving with a speed of 10 m/s infront of a mirror moving with a speed of 3 m/s as shown in fig. Find the velocity of image of the object with respect to mirror, object and ground.
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
Sol.
= Velocity of object = (–5 
– 5 
) m/s
= Velocity of mirror = 3 
m/s.
For component of velocity perpendicular to mirror
( 
) ⊥ ⊥ = – ( 
) ⊥ ⊥ = – ( 
– 
)
= – (– 5 
– 3 
) = (5 
+ 3) 
m/s
For component of velocity parallel to mirror
( 
) || = ( 
) || = 
– 
= – 5 
– 0 = – 5 
( 
) = ( 
) ⊥ ⊥ + ( 
) ||
= (5 
+ 3) 
– 5 
Also, 
= 
– 
(5 
+ 3) 
– 5 
= 
– (3 
)
or (5 
+ 3) 
+ 3 
– 5 
= 
or 
= (5 
+ 6) 
– 5 
Also, 
= 
– 
= (5 
+ 6) 
– 5 
– (5 
– 5 
)
= (5 
+ 6 + 5 
) 
+ (5 – 5 
)
= (10 
+ 6) 
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