1. Pete's speed:
- Formula: Speed = Distance / Time
- Setup: Speed = 150 meters / 18 seconds
- Answer: 8.33 m/s
2. Jogger's average speed:
- Formula: Average Speed = Total Distance / Total Time
- Setup: Total Distance = 4.0 km + 2.0 km + 1.0 km = 7.0 km; Total Time = 32 min + 22 min + 16 min = 70 min; Average Speed = 7.0 km / 70 min
- Answer: 0.10 km/min
3. Train's average speed:
- Formula: Average Speed = Distance / Time
- Setup: Time = 2 hours 30 minutes = 2.5 hours; Average Speed = 120 km / 2.5 hours
- Answer: 48 km/hr
4. Plane's distance:
- Formula: Distance = Speed × Time
- Setup: Distance = 600 km/hr × 2.5 hrs
- Answer: 1500 km
5. George's speed:
- Formula: Speed = Total Distance / Total Time
- Setup: Total Distance = 750 meters + 250 meters = 1000 meters; Total Time = 12 seconds; Speed = 1000 meters / 12 seconds
- Answer: 83.33 m/s
Parent Tip: Review the logic above to help your child master the concept of acceleration worksheet with answers.