A 1110 N man stands in the middle of a frozen pond of radius4.18 m. He is unable

Question

A 1110 N man stands in the middle of a frozen pond of radius4.18 m. He is unable to get to the other side because of a lack offriction between his shoes and the ice. To overcome thisdifficulty, he throws his 0.645 kg physics textbook horizontallytoward the north shore, at a speed of 6.71 m/s. How long does ittake him to reach the south shore? Answer in units of s. A 1110 N man stands in the middle of a frozen pond of radius4.18 m. He is unable to get to the other side because of a lack offriction between his shoes and the ice. To overcome thisdifficulty, he throws his 0.645 kg physics textbook horizontallytoward the north shore, at a speed of 6.71 m/s. How long does ittake him to reach the south shore? Answer in units of s.

Explanation / Answer

Conservation of momentum MV=mv V= mv/M Considering the speed will remain constant V=S/t then t= S/V = S/ [mv/M ] where M=1110 / 9.81 t= 4.18 x (1110/9.81)/ (0.645 x 6.71) t= 109 s

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