distance
speed = — ————
time
s= 30m
———
6s
the average speed of the marble is 5s/m
Stratosphere is THE LAYER OF ATMOSPHERE THAT PROTECTS US because it contains OZONE. Ozone is also a layer that protects us from the direct rays/ UV RAYS of the SUN
A
the unit used for measuring both work and energy is the joule
If a car travels 80 km in 1 hour, then it travels 3 * 80 km in 3 hours.