Two points on a velocity time-graph have coordinates (5s, 10ms-1) and (20s, 20ms-1). Calculate the mean acceleration between the two points
-
A.
0.67ms-1 -
B.
0.83ms-1 -
C.
1.50ms-1 -
D.
2.00ms-1
Correct Answer: Option A
Explanation
a = (frac{v – u}{Delta t})
a = (frac{20 – 10}{20 – 5})
a = 0.67ms-1