iran-konkur 2019 Q165

iran-konkur · Other · konkur-riazi_1398_specialized_new-curriculum Not Maths
165. According to the figure below, three balls are thrown from the top of a building similarly, from one point with equal speeds. If $W_1$, $W_2$, and $W_3$ are the weights of the balls at the moment of landing on the ground, which relationship is correct?
[Figure: Three projectiles launched from a building rooftop at different angles]
  • [(1)] $W_1 = W_2 = W_3$
  • [(2)] $W_2 > W_1 > W_3$
  • [(3)] $W_2 < W_3 < W_1$
  • [(4)] $W_2 = W_3 > W_1$

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Physics 121-A Page 11
\textbf{165.} According to the figure below, three balls are thrown from the top of a building similarly, from one point with equal speeds. If $W_1$, $W_2$, and $W_3$ are the weights of the balls at the moment of landing on the ground, which relationship is correct?

\textit{[Figure: Three projectiles launched from a building rooftop at different angles]}

\begin{itemize}
  \item[(1)] $W_1 = W_2 = W_3$
  \item[(2)] $W_2 > W_1 > W_3$
  \item[(3)] $W_2 < W_3 < W_1$
  \item[(4)] $W_2 = W_3 > W_1$
\end{itemize}



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