A spider attached itself to the point P on the side of car C when the point P was at its lowest point at 1.00pm.
The height, h meters, of the point P above ground level, at the time t hours after 1.00pm is given by;
h(t) = 62 + 60sin( (5t-1)pi / 2)
Two questions to the information;
i. Find the time, after 1.00pm, when P first reaches a height of 92 meters above ground level.
ii. Find the number of minutes during one rotation that P is at least 92 meters above ground level.
All help is much appreciated.