Khanacademy. org
ashboard | khan academy
(14) physics science
quiz 2
you might need:
iii
calculator
arunner is running to the left with a speed of 8.0 — when she speeds up with constant acceleration for
2.0 s to reach the finish line. the runner's final speed is 9.9 to the left.
oc
m
what was the runner's acceleration as she sped up to the finish line?

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

radiation

explanation:

heat is transmitted by radiation

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.