Question

b) The position of an object moving along x axis is given by x=a+bt', where a=8.5m, b=2.5m/s,
and t is measured in seconds. What is its velocity at t=0s and t=2s. What is the average velocity
between t=2s and t=4s?​

Answer 1

Answer:

Average velocity (v) of an object is equal to its final velocity (v) plus initial velocity (u), divided by two.

v¯¯¯=(v+u)2v¯=(v+u)2

Where:

v¯¯¯v¯ = average velocity

vv = final velocity

uu = initial velocity