Question

Please help, will mark as brainiest. Does anyone know how to solve?

Answer 1

In the first question ,

differentiate h(t) because differentiation of h would give you the velocity . Put the velocity equal to 0 and find the time at V=0 . The ball will be at max. height at that instant of time.

for the second question ,

differentiate R(p) and then find out it's Maxima .

I hope this helps.