Dimple

Sand is falling into a conical pile at the rate of 10 m3/sec such that the height of the pile is always half the diameter of the base of the pile. Find the rate at which the height of the pile is changing when the pile is 5 m. high. h= r=5 V= (1/3)π(r)(r)...

but yass that v^2/a is equal to t(time) .. how can u relate it directly with S( distance)??

ok i think i got it...they asked for the maximum ditance... its mean maximum distance = range as we know R = V^2 sin2 theta/ g v = 36m/s = 36^2 sin 2(45) as range is maximum at 45 degree = 1296/9.8 =132.2m = 132m approx