A baseball runner is running west towards 2nd base at 7.2 m/s and 0.80 s later has rounded 2nd and is heading north towards 3rd base at 8.4 m/s. Determine his change in velocity, and his acceleration.
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Expert's answer
2021-05-06T07:41:50-0400
"\\Delta v=\\sqrt{7.2^2+8.4^2}=11.1\\frac{m}{s}\\\\\\theta=\\arctan{\\frac{8.4}{7.2}}=49.4\\degree \\text{ N of W}\\\\a=\\frac{\\sqrt{7.2^2+8.4^2}}{0.8}=13.8\\frac{m}{s^2}"
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