Question
school speed-zone is 30 km/h. Three cars A,B,andCaregoingatspeedsvA =8m/s,vB = 9 m/s, and vc = 10 m/s. The cars that will receive speeding tickets are:
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Answer to a math question school speed-zone is 30 km/h. Three cars A,B,andCaregoingatspeedsvA =8m/s,vB = 9 m/s, and vc = 10 m/s. The cars that will receive speeding tickets are:
Darrell
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Solution:
1. Convert the speed limit to meters per second.
- The speed limit is 30 km/h.
- Convert km/h to m/s:1 \text{ km/h} = \frac{1}{3.6} \text{ m/s}
- Therefore,30 \text{ km/h} = 30 \times \frac{1}{3.6} \text{ m/s} = \frac{30}{3.6} \text{ m/s} = 8.33 \text{ m/s}
2. Compare the speeds of cars A, B, and C to the speed limit.
- Speed of car A:8 \text{ m/s} 8.33 \text{ m/s}
- Speed of car B:9 \text{ m/s} 8.33 \text{ m/s}
- Speed of car C:10 \text{ m/s} 8.33 \text{ m/s}
3. Conclusion:
- Cars B and C are exceeding the speed limit and will receive speeding tickets.
1. Convert the speed limit to meters per second.
- The speed limit is 30 km/h.
- Convert km/h to m/s:
- Therefore,
2. Compare the speeds of cars A, B, and C to the speed limit.
- Speed of car A:
- Speed of car B:
- Speed of car C:
3. Conclusion:
- Cars B and C are exceeding the speed limit and will receive speeding tickets.
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