A) zero
B) 60 unit
C) 7.5 unit
D) \[40\sqrt{2}\]unit
E) 3.0 unit
Correct Answer: B
Solution :
Angular momentum about origin \[|\overrightarrow{L}|=|\overrightarrow{r}\times m\overrightarrow{v}|\] \[=(4\cos 45{}^\circ )\times (5)\times 3\sqrt{2}\] \[=\frac{4}{\sqrt{2}}\times 5\times 3\sqrt{2}\] \[|\overrightarrow{L}|=60\text{ }unit\]You need to login to perform this action.
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