University:
Campbell University
Course:
PHYS 221 | General Physics I
Academic year:

2023
Views:

473

Pages:

2
Author:

topljenjeen8

Speed and Velocity Name: 1. What is the speed of a car that travels 150 km in 3.00 h? s = d/t s = 150 km / 3.00 h s = 50 km/h 2. A vehicle travels 2345 m in 315 s toward the evening sun. What is its velocity? v = d/t v = 2345 m / 315 s v = 7.44 m/s 3. What is the speed of a bus that travels 250.0 km in 2.00 h? s = d/t s = 250.0 km / 2.00 h s = 125 km/h 4. Convert your answer from question 3 to m/s. 125 km/h * (1000 m/1 km) * (1 h/3600 s) = 34.7 m/s 5. What distance will a car traveling 65 km/h travel in 3.0 h? d = s * t d = 65 km/h * 3.0 h d = 195 km 6. What distance will be traveled if you are going 120 km/h for 30 min? (30 min = 0.5 h) d = s * t d = 120 km/h * 0.5 h d = 60 km 7. How long will it take to go 150 km traveling at 50 km/h? t = d/s t = 150 km / 50 km/h t = 3 h 8. How long will it take to travel 20000 m traveling 10 m/s? t = d/s t = 20000 m / 10 m/s t = 2000 s 9. If a rocket travels 5600 km in 3.00 h, what is its speed? s = d/t s = 5600 km / 3.00 h s = 1867 km/h 10. Convert to m/s. 1867 km/h * (1000 m/1 km) * (1 h/3600 s) = 519 m/s KEY 11. A car travels 240 km in 2.0 h and a sprinter travels 100 m in 9.5 s. Which is traveling faster and by how much? s = d/t s = 240 km / 2.0 h s = 120 km/h ← FASTER s = d/t s = 100 m / 9.5 s s = 10.5 m/s 12. You drive a car from Milwaukee to Chicago in 95 min. What is its velocity in km/h and speed in m/s? Were you speeding? Use 150 km as your distance. v_avg = d/t v_avg = 150 km / 1.58 h v_avg = 94.7 km/h south No, as most speed limits are 100 to 110 km/h 13. How far will you go in 3.0 min traveling 60 km/h? s = d/t 60 km/h = d / 0.05 h 0.05 h * 60 km/h = d d = 3.0 km 14. Convert 36 km/h to m/s 36 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 10 m/s