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Hello, the answer for this question give by the other two phys sics tutors are 125 Newtons. But in accordance with the photo attached, at the bottom most right, the answer given is 0.125 Newtons.How? Please
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16 votes
16 votes
Hello, the answer for this question give by the other two phys sics tutors are 125 Newtons. But in accordance with the photo attached, at the bottom most right, the answer given is 0.125 Newtons.How? Please explain.

Hello, the answer for this question give by the other two phys sics tutors are 125 Newtons-example-1
User Damiqib
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1 Answer

14 votes
14 votes

Answer:


F=125N

Step-by-step explanation: We need to find the average force applied by the player:


\begin{gathered} m=150g=0.150\operatorname{kg} \\ v=25ms^(-1) \\ t=0.03s \\ v=v_o+at \\ \therefore\Rightarrow \\ 0=v_o+at=25ms^(-1)+a0.03s \\ \therefore\Rightarrow \\ a=-(25ms^(-1))/(0.03s)=-833.333ms^(-2) \\ \therefore\Rightarrow \\ F=ma\rightarrow(0.150)*(833.333ms^(-2))=-125N \\ \therefore\Rightarrow \\ F=-125N \end{gathered}

User Olinda
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