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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