A body moving with uniform acceleration has two points(5, 15) and (20, 60) on the velocity-times graph of its motion. Calculate the acceleration of the body
A
0.25ms-2
B
3.00ms-2
C
4.00ms-2
D
9.00ms-2
E
16.00ms-2
Verified Correct Answer: B.
Physical Principles & Numerical Solution
slope = acceleration
a = \(\frac{v_2 - v_1}{t_2 - t_1} = \frac{60- 15}{20 - 5}\)
= 3ms\(^{-2}\)
Source: Myschool Past Questions Archive (Record #33196)