21. A toy car starts from rest and accelerates at 1.50 m/s’ [E] for 5.25 s. What is the final velocity, V, of the car? Show your work.

The final Velocity, V, of the car is 7.9m/s

Explanation:

Given the following :

Toy car starts from rest, therefore,

Initial Velocity (u) = 0

Acceleration (a) = 1.5m/s^2 E for time, t = 5.25s

Final velocity (V) of the car =?

Using the motion equation:

v = u + at

Where v = final Velocity

u = Initial Velocity

a = acceleration

t = time

v = 0 + 1.5(5.25)

v = 0 + 7.875

v = 7.875m/s

v = 7.9m/s

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

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