Answer:
1. 50 km/hr
2. 5 m/s
3. 180 km/hr 50 m/s
4. 30.56 m/s
5. 11.4 km/hr
Explanation:
#1 500 km/ 10 hours = 50 km/hr
#2 100 m/ 20 s = 5 m/s
#3 540 km/3 hrs = 180 km/hr
180 km/1 hr x (1000 m/ 1 km) x (1 hr/ 60 minutes) x (1 minute/ 60 seconds) = 50 m/s
