Advertisements
Advertisements
प्रश्न
A solid spherical ball rolls on an inclined plane without slipping. The ratio of rotational energy and total energy is ______.
विकल्प
`2/5`
`2/7`
`3/5`
`3/7`
MCQ
रिक्त स्थान भरें
उत्तर
A solid spherical ball rolls on an inclined plane without slipping. The ratio of rotational energy and total energy is `underline(2/7)`.
Explanation:
KEr = `1/2 "I"ω^2`
= `1/2 (2/5 "mR"^2) ("V"/"R")^2`
= `1/5 "mV"^2`
KETotal = `1/2 "mV"^2 + 1/2 "I"ω^2 = 7/10 "mV"^2`
⇒ Ratio = `2/7`
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
