Correct answer is (b)
We know that
\(\tau\) = r × F
∵ \(\tau\) \(= \frac{dL}{dt},\) \(F = \frac{dP}{dt}\)
\(\left(\frac{dL}{dt}\right) = r \times \left(\frac{dP}{dt}\right)\)
\(\left(\frac{dL}{dt}\right) - r \times \left(\frac{dP}{dt}\right) = 0\)
a) Four points to be kept in mind while planning menu for 15- year-old boy-
1. Menu should be nutritious
2. Easy to eat
3. Avoid over eating and dieting
4. Food should provide...