Answer to Question #253387 in Physics for joon

Question #253387

A car moving at 30 m/s uniformly slows down to a speed of 10 m/s in a time of 6 seconds. Determine the acceleration of the car.

Expert's answer

"a=\\dfrac{v-v_0}{t}=\\dfrac{10\\ \\dfrac{m}{s}-30\\ \\dfrac{m}{s}}{6\\ s}=-3.3\\ \\dfrac{m}{s^2}."

The sign minus means that the car decelerates.

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