1.A parachutist drops from a great height. The table below shows his velocity (v m/s) for the time (t seconds) taken.
(b) The total distance travelled is found by working out the area under the curve, using the trapezium rule.
Area = ½ X 2 X { (0 + 0.9 ) + 2 ( 0.4 + 0.6 + 0.72 + 0.8 + 0.8 + 0.9 + 0.9 + 0.9)}
= 0.9 + 2 X 6.07
sq. units
Therefore, distance travelled is approximately = m