If a car gradually changes a direction of 90 degrees at constant speed of 200 m/s over a time period of 20 seconds, then what is the accelleration?(adsbygoogle = window.adsbygoogle || []).push({});

I don't know if the way I worked it was correct. I think the only assumption is that the acceleration is constant.

[tex]a_x=\frac{v_xf-v_xi}{t}=\frac{0-200}{20}=-10[/tex]

[tex]a_y=\frac{v_yf-v_yi}{t}=\frac{200-0}{20}=10[/tex]

[tex]a=\sqrt{a_x^2+a_y^2}=\sqrt{(-10)^2+10^2}=10\sqrt{2}[/tex]

Does this seem right to you?

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# Homework Help: Accelleration Through a Curve

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