Applications Of Reflection Of Light
When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.
Sign Convention for Mirrors
A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.
I was wondering what formulas and approach to use on the problem I submitted in the image I've attached and if my approach has been correct so far


Given:-
A hot-air balloon has just lifted off and is rising at the constant rate of 2.5 m/s. Suddenly one of the passengers realizes she has left her camera on the ground. A friend picks it up and tosses it straight upward with an initial speed of 12 m/s . If the passenger is 2.5 m above her friend when the camera is tossed.
Find:-
how high is she when the camera reaches her?
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