Question

PLEASE HELP!!!The measurement of how fast an object moves over a certain amount of time.

Answer 1

1. Speed, since we know that $s=\frac{d}{t}$, where s is speed, d is distance and t is time

2. Velocity, for velocity you need to consider the direction and displacement gives the direction of travel.

3. 25 mph, because $s=\frac{d}{t} =\frac{50}{2} =25mph$

4. 50 mph east, velocity unlike speed has direction.

5.Velocity, displacement gives the formula  $v=\frac{d}{t}$ direction.

6. 0, the displacement is zero so velocity is zero

7.  It decreases, speed is inversely proportional to time

Answer 2

1- Acceleration
2- Velocity
3- 25 mph
4- 50 mph east
5- Speed
6- 0
7- It decreases