Hello!
Geoff was trying to measure D) current.
I hope it helps!
The answer is:
It is virtual and behind the mirror.
Mirrors produce images, either virtual or real.
Virtual images are produced when the image is behind the mirror. Real images are formed when they image is produced in front of the mirror.
So look at the image produced. It's small and found in behind the mirror. This means that it is a virtual image. How do I know that its behind the mirror?
When you look at the diagram, the front side of the mirror is the blue side. This is a convex mirror.
The speed of bullet =
850 m/s
Distance given = 1 km = 1000m
S = D/t
t • S = D/t • t
St = D
St/S = D/S
t = D/S
t = 1000m/850m/s
t = 1.176 s
It will take the bullet 1.176 or about 1.18 seconds to go 1 km.
