Question

How do you determine the initial velocity of a charies toy car if it is already accelerated with 13.3m/s over a period of 3 seconds with an acceleration of 3.2 m/s²?

Answer 1

To determine the initial velocity of the toy car, we can use the kinematic equation that relates the final velocity (v), initial velocity (u), acceleration (a), and time (t):

v = u + at

Rearranging the equation, we can solve for the initial velocity (u):

u = v - at

Given the following values: Final velocity (v) = 13.3 m/s Acceleration (a) = 3.2 m/s² Time (t) = 3 seconds

Substituting these values into the equation, we get:

u = 13.3 m/s - (3.2 m/s²)(3 s)

Calculating this expression, we find:

u = 13.3 m/s - 9.6 m/s

u = 3.7 m/s

Therefore, the initial velocity of the toy car is 3.7 m/s.