I'm not sure if i did this problem correctly. Could someone check it over.(adsbygoogle = window.adsbygoogle || []).push({});

A 730-N man stands in the middle of a frozen pond of a radius of 5.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the north shore at a speed of 5.0 m/s. How long does it take him to reach the south shore?

[tex] p_i = p_f [/tex]

[tex] 0 = m_1v_1f + m_2v_2f [/tex]

[tex] v_1f = - \frac{m_2}{m_1} * v_2f = - \frac{1.20 kg}{74.5 kg} * 5.0 m/s = -.081 m/s [/tex]

[tex] t = \frac{x}{v} = \frac{5.0 m}{2.46 m/s} = 2.03 s [/tex]

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# Homework Help: Conservation of Momentum difficulty

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