JAMB - Physics (2009 - No. 2)

What is the acceleration between two points on a velocity time graph which has coordinates
(10s, 15 ms-1)
and (20 s, 35 ms-1)?

1.7 ms^-2

3.50 ms^-2

1.00 ms^-2

2.00 ms^-2

Acceleration = \(\frac{ΔV}{Δt}\)

= \(\frac{V - U}{t_2 - t_1}\)

= \(\frac{35 - 15}{20 - 10}\)

= \(\frac{20}{10}\)

= 2ms\(^-2\)