Question

the velocity of aparticle is given by u=25t^2-80t-200, where v is in feet per second and t is in seconds. plot the velocity v and acceleration a versus time for the first 6 seconds of motion and evaluate the velocity when a is zero

Answer 1

Answer:

v = 220 m / s

Explanation:

This is a kinematics exercise, the expression for velocity is

v = 25 t² - 80 t - 200

asks the velocity for time t = 6 s.

let's calculate

v = 25 6² - 80 6 - 200

v = 220 m / s