The 2nd word on 11 is speed
2) acceleration = final velocity - initial velocity / time —> V-U/T
Acceleration is the change in velocity over the change in time so it can be represented by the equation a = Δv/Δt.
3) first one- F=10.5 N
second one- 4 m/s^2
third one- 1200N
Answer:
When a ray of light falls on a glass slab normally, the angle between normal and incident ray is zero.
