Two points on a velocity time graph have coordinates (5s, 10m/s) and (20s, 20m/s) Calculate the mean acceleration between the two points.

 Physics Jamb, Waec, Neco Past Questions & Answers on Speed, Velocity and Acceleration

QUESTIONS 19. Two points on a velocity time graph have coordinates (5s, 10m/s) and (20s, 20m/s)

Calculate the mean acceleration between the two points.

A. 0.67ms'2  B. 0.83ms'2  C. 1.50ms'2  D.2.00ms'2

JAMB 1989 Ans:0.67ms"

Solutions

The mean acceleration a = change in velocity/ Change in time

a = 20-10/20-5

a = 10/15

a = 0.67m/s²