सदिश n = 5i + 3j + 8k को x - अक्ष के चारों ओर 90° के एक कोण से घुमाइए। तो घूर्णित सदिश (Hn) क्या होगी?

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ESE Mechanical 2019: Official Paper
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Answer (Detailed Solution Below)

Option 4 :
Free
ST 1: UPSC ESE (IES) Civil - Building Materials
20 Qs. 40 Marks 24 Mins

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संकल्पना:

X - अक्ष के चारों ओर घूर्णन आव्यूह निम्न द्वारा ज्ञात किया जाता है

R(x, θ) = 

गणना:

R(x, 90°) =  

R(x, 90°) = 

अब, सदिश n = 5i + 3j + 8k के चारों ओर घुमाने पर

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