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OlgaM077 [116]
3 years ago
14

PLEASE HELP! IT IS MIDNIGHT AND THIS IS DUE TOMORROW!

Physics
1 answer:
nlexa [21]3 years ago
3 0

The equation to work out the speed is distance/time.

If we apply this equation to your numbers we will first need to find the total distance travelled.

80km/h for an hour means you travel 80km

40km/h for 2 hours means you will travel 80km

80+80 is 160km in total.

The time taken to complete this distance is 3 hours so, applying the equation we get

speed = 160/3 = 52.33km/h


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