AP EAMCET · PHYSICS · Work Power Energy
A cannon shell fired breaks into two equal parts at its highest point. One part retraces the path to the cannon with kinetic energy \(E_1\) and kinetic energy of the second part is \(E_2\), relation between \(E_1\) and \(E_2\) is
- A \(E_2=15 E_1\)
- B \(E_2=E_1\)
- C \(E_2=4 E_1\)
- D \(E_2=9 E_1\)
Answer & Solution
Correct Answer
(D) \(E_2=9 E_1\)
Step-by-step Solution
Detailed explanation
At highest point \(m u \cos \theta=-\frac{m}{2} u \cos \theta+\frac{m}{2} v\) \(m u \cos \theta+\frac{m}{2} u \cos \theta=\frac{m}{2} v\) \(\frac{2 m u \cos \theta+m u \cos \theta}{2}=\frac{m}{2} v\)…
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