Question

A ball is rolling along the x-axis. Its position as a function of time is given by the
equation
x = 4.21 t2
+ 3.62 , where x is in metres and t in seconds.
(a) What is the displacement of the ball during the time interval from
t1 = 2.00 s to t2 = 4.00 s?
(b) What is the average velocity during the above time interval?
(c) What is the instantaneous velocity of the ball at time t = 5.00 s?

Answer 1

Answer:

a) 20.46 m , 70.98 m   b) 14 m/s approx  c)42.1 m/s

Explanation:

Please look at the photo of the solution