Question

A particle moving along the x- Axis, where the position is expressed by : X = 5t^2 + 1, X in meter and t in second, the average velocity in time interval between 2 seconds and 3 seconds is…. (m/sec)

Answer 1

V1 = 5(2²)+1
= 21m/sec

v2 = 5(3²)+1
= 46m/s

v rata-rata =(v2-v1)/(t2-t1)
= (46-21)/3-2
= 25/1
= 25m/s