The diagram above shows the speed-time graph of a car.If the car covered a total distance of 600m in 25s, calculate its maximum speed
-
A.
30ms-1 -
B.
25ms-1 -
C.
20ms-1 -
D.
15ms-1
Correct Answer: Option A
Explanation
S = (frac{1}{2} (a + b)h)
60 = (frac{1}{2}(15 + 25)h)
h = (frac{1200}{40} = 30)m/s