Answer to Question #253277 in Mechanics | Relativity for Serina

Question #253277

A person runs with an initial velocity of 5.0 m/s. Then he slows down at a constant rate of -1.2 m/s²over a period of 3 seconds. What is his velocity at the end of time.

Expert's answer

"a=\\frac{v_2-v_1}{t}=1.2" m/s²

"v_2=v_1+at=5-1.2\\cdot 3=1.4" m/s

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