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2 किग्रा द्रव्यमान के एक पिण्ड का x अक्ष के अनुदिश वेग 3 मीटर/सेकण्ड है इस पर y अक्ष के अनुदिश 4 न्यूटन का बल लगा है। 4 सेकण्ड पश्चात् पिण्ड की मूलबिंदु से दुरी होगी:
A. 12 मीटर
B. 15 मीटर
C. 20 मीटर
D. 28 मीटर

1 Answer

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Best answer
Correct Answer - C
X अक्ष के अनुदिश विस्थापन = ut
=3 मीटर/सेकण्ड xx 4 सेकण्ड
=12 मीटर
Y अक्ष के अनुदिश विस्थापन `=(1)/(2) at^(2) =(1)/(2) ((F)/(m))t^(2) `
`" "=(1)/(2)((4 (न्यूटन))/(2 (किग्रा))xx(4(सेकण्ड) )^(2)`
`" " 16 `मीटर।
मूलबिंदु से परिणामी विस्थापन
`" " =sqrt((12मीटर)^(2) xx(16मीटर )^(2) )=20` मीटर।

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