Let's solve each problem step by step using the formula:
$$
\text{Speed} = \frac{\text{Distance}}{\text{Time}}
$$
We'll go through each question one by one.
---
1. A football field is about 100 m long. It takes a person 20 seconds to run its length. How fast did that person run?
- Distance = 100 meters
- Time = 20 seconds
$$
\text{Speed} = \frac{100}{20} = 5 \, \text{m/s}
$$
✔ Answer: 5 m/s
---
2. The pitcher’s mound in baseball is 15 m from home plate. It takes 3 seconds for a pitch to reach the plate. How fast is the pitch?
- Distance = 15 meters
- Time = 3 seconds
$$
\text{Speed} = \frac{15}{3} = 5 \, \text{m/s}
$$
✔ Answer: 5 m/s
---
3. If you drive at 55 km/hour at a constant speed and make a 400 km drive, how fast did you go?
Wait — this seems like a trick or typo. You're already told you drove at
55 km/h, so the speed is
55 km/h. But let's check if they want confirmation.
The question says: *"how fast did you go?"* — and you drove at a constant speed of 55 km/h.
So even though you traveled 400 km, your speed was still
55 km/h.
✔ Answer: 55 km/h
(Note: If it had asked *how long* it took, we’d use time = distance/speed.)
---
4. If you ran for 15 minutes and went 1.2 kilometers, how fast did you run?
- Distance = 1.2 km
- Time = 15 minutes → convert to hours because speed is usually in km/h
$$
15 \text{ minutes} = \frac{15}{60} = 0.25 \text{ hours}
$$
$$
\text{Speed} = \frac{1.2}{0.25} = 4.8 \, \text{km/h}
$$
✔ Answer: 4.8 km/h
---
5. Every summer Sebastian drives to Michigan. It is 3000 km to get there. He spends 50 hours driving. What is his speed?
- Distance = 3000 km
- Time = 50 hours
$$
\text{Speed} = \frac{3000}{50} = 60 \, \text{km/h}
$$
✔ Answer: 60 km/h
---
6. A bullet travels at 2,550 m in 3 seconds. What is the speed of that bullet?
- Distance = 2,550 meters
- Time = 3 seconds
$$
\text{Speed} = \frac{2550}{3} = 850 \, \text{m/s}
$$
✔ Answer: 850 m/s
---
✔ Final Answers:
1.
5 m/s
2.
5 m/s
3.
55 km/h
4.
4.8 km/h
5.
60 km/h
6.
850 m/s
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Let me know if you'd like these answers formatted neatly for printing or with units explained further!
Parent Tip: Review the logic above to help your child master the concept of speed worksheet middle school.
