Physics

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A car travels at an average speed of 83.2 km/h for 1.00 h and then at an average speed of 42.4 km/h during a second hour. What is the car's average speed during the 2.00 h interval?

A car travels 0.98 km at an average speed of 83.2 km/h and then 0.99 km at an average speed of 42.4 km/h. What is the car's average speed during the 1.97 km interval?

• Physics -

(0.98+0.99)\(.98\83.2+.99\42.4)
(1.97)\(.0117788+.0233491)
(1.97)\(0.0351279)
(1.97\0.0351279)
56.080779

• Physics -

car travels at 50 kilometres per hour for 24 mins

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