A ball thrown vertically upward reaches a maximum height of 30. meters above the surface of Earth. At its maximum height, the sp
eed of the ball is _________.
a. 0.0 m/s
b. 3.1 m/s
c. 9.8 m/s
d. 24 m/s
1 answer:
Answer:
a. 0.0 m/s
Explanation:
According to the law of conservation of energy, the maximum potential energy of the body is equal to the minimum kinetic energy:
P+K=const; Pmax=mgH Kmin=mv^2/2=0 (because v=0)
You might be interested in
Answer:
kinetic friction force
Explanation:
It is conduction. Rhejrjrjejehrhrhvrbrgr
Answer:
the law of motion
Explanation:
because the wheels are moving it means motion i am not sure which number law it is but I believe that it is 2nd but u should look it up to be safe
Answer:
714.285s
Explanation:
use relative velocity
8-4.5 = 3.5m/s
x = 2500m
2500/3.5 = 714.285s = 700s (with sig figs)
