Sumali sa IDNStudy.com at simulang makuha ang maaasahang mga sagot. Ang aming komunidad ay handang magbigay ng malalim at praktikal na mga solusyon sa lahat ng iyong mga katanungan.

A boy throws a ball of mass 0.25kg straight upward with an initial speed of 20m/s. When the ball returns to the boy, its speed is 17m/s. How much work does air resistance do on the ball during its flight?

Sagot :

90% bcuz 0,25kg is a thing or rather small object to be thrown fast