Answer:
Displacement
Explanation:
We are given that average velocity is different than average speed.
We have to find what involves average velocity.
Average velocity:It is defined as the displacement per unit time.
Mathematical representation,
Average velocity=
Average speed:It is defined as the distance per unit time.
Average speed=
Average velocity is different from average speed because calculating average velocity involves displacement but average speed involves distance.
Answer:
(a). Energy is 64,680 J
(b) velocity is 51.43m/s
(c) velocity in mph is 115.0mph
Explanation:
(a).
The potential energy of the payload of mass
is at a vertical distance
is
.
Therefore, for the payload of mass at a vertical distance of
, the potential energy is
(b).
When the payload reaches the bottom of the shaft, all of its potential energy is converted into its kinetic energy; therefore,
(c).
The velocity in mph is