Motion of cars
The route from Zlín to Liberec via Olomouc and Hradec Králové measures s = 300 km.
a) Mr. Horák set out from Zlín at time tH = 16:00 h with a truck at an average speed of vH = 40 km/h.
At time tN = 17:30 h, Mr. Novák set out after him by car with an average speed of vN = 55 km/h. How far from Zlín did they meet? Near which larger city was it?
c) Simultaneously with Mr. Horák, Mr. Skalák set out at 16:00 h in the opposite direction along the route from Liberec to Zlín and with his vehicle he moved at an average speed of 50 km/h. When and how far from Liberec did he meet with Mr. Horák?
d) Draw into one graph the motion of all three cars as a function of time, and read from the graph the times and also the places of meeting from parts a) and d). Who will arrive at the destination first?
a) Mr. Horák set out from Zlín at time tH = 16:00 h with a truck at an average speed of vH = 40 km/h.
At time tN = 17:30 h, Mr. Novák set out after him by car with an average speed of vN = 55 km/h. How far from Zlín did they meet? Near which larger city was it?
c) Simultaneously with Mr. Horák, Mr. Skalák set out at 16:00 h in the opposite direction along the route from Liberec to Zlín and with his vehicle he moved at an average speed of 50 km/h. When and how far from Liberec did he meet with Mr. Horák?
d) Draw into one graph the motion of all three cars as a function of time, and read from the graph the times and also the places of meeting from parts a) and d). Who will arrive at the destination first?
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