Question

Example 3.2
The position of an object
moving along x-axis is given by x= a + bt
where a = 8.5 m, b = 2.5 m s-2 and t is
measured in seconds. What is its velocity at
t=0 s and t = 2.0 s. What is the average
velocity between t = 2.0 s and t = 4.0 s?​

Answer 1

Answer:

at t=0 the velocity is 0

at t=2.0 the velocity is 3m per sec