The diagram above illustrates the velocity-time graph of the motion of a body. Calculate the total distance covered by the body
-
A.
50m -
B.
65m -
C.
175m -
D.
225m -
E.
300m
Correct Answer: Option D
Explanation
Distance of A = 1/2 x (10 + 20) x 5
= 1/2 x 30 x 5 = 75m. Distance of B = 20 x 5 = 100m
Distance of C = 1/2 x 5 x 20 = 50/225
∴ Total distance is 225m