a person picks up a snowball with a mas of 150 grams from the ground to a heigh of 180 cm and then throws it with a speed of 12m/s.what is the work done by person on the snowball?

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lazirlufias lazirlufias · Answer 1 · 2020-04-28T22:16:24+02:00

Answer:

146.721 J

Explanation:

by using standard unit, assuming gravitational acceleration is g =9.8 m/s², and using well known formula, we get

[tex]W=E_p+E_k

\\=mgh+0.5mv^2

\\=(0.15)(9.8)(1.8)+0.5(0.15)(12)^2

\\=146.721[/tex]

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