हिंदी

The torque of force F = ijk-3i^+j^+5k^ acting on a point r = ijk7i^+3j^+k^ about origin will be ______.

Advertisements
Advertisements

प्रश्न

The torque of force F = `-3hat"i"+hat"j"+5hat"k"` acting on a point r = `7hat"i"+3hat"j"+hat"k"` about origin will be ______.

विकल्प

  • `14hat"i"-38hat"j"+16hat"k"` 

  • `4hat"i"+4hat"j"+6hat"k"` 

  • `-14hat"i"+38hat"j"-16hat"k"` 

  • `-21hat"i"+3hat"j"+5hat"k"` 

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

The torque of force F = `-3hat"i"+hat"j"+5hat"k"` acting on a point r = `7hat"i"+3hat"j"+hat"k"` about origin will be `underlinebb(14hat"i"-38hat"j"+16hat"k")`.

Explanation:

Torque of the force, `tau` = r × F

`tau= |(hat"i",hat"j",hat"j"), (7,3,1),(-3,1,5)|` 

= `(14hat"i"-38hat"j"+16hat"k")` 

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×