Hey there!
We are given ,
Acceleration, a = -2m/s^2
Initial velocity , u = 15m/s
Time , t = 5 seconds
We know that ,
V=u+at
Now , final speed ,
V = 15+(-2)(5)
V = 15-10
V = 5 m/s -> final speed
Hope this helps you dear :)
Have a good day <3
15 km 30 divided by 4 is 7.5 km in 30 min times that by 2 the answer is 15
Answer:
the inertia provides the tendency to maintain speed and keep moving
the answer could be (very basic) since options arent given
Light waves travel in straight lines when they are travelling in a uniform medium. This is because the waves are travelling at the same speed.
