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Physics, 21.02.2020 17:30 ashiteru123

A particle moving with a constant speed traveled rectilinearly from point A of coordinates A(-40.0m, 30.0m) to point B(40.0m, 50.0m) in 4 seconds. It then moves rectilinearly (with another constant speed) from point B to point C (60.0m, 20.0m) in 2 seconds.
a. What is the particle's average speed between points A and C?
b. What is the particle's average acceleration in this trip?

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