Question

Science questions. Please help, and don't just answer anything for the points, this is very important. Thanks :)

Answer 1

Answer:

1: 200 m/s

2:43.89 m/s

Explanation:

1: 400/20

2: 39500/9000

I might do more later but I got tired sorry I hope these help

Answer 2

Answer: 3. 2mps

4. 5s

5. 2h

Formula:

3: speed=dis/time

4: time=dis/speed

5: time=dis/speed

Work:

3: 90m/ 45sec=2mps

4: 5m/ 1m/s=5s

5: 30mi/15mph=2h