- #1

rkslperez04

- 31

- 0

Im studying for a test and wanted to verify my problems. I thought I would dabble on the dark side of the textbook and try the even ones too.

Can you verify my answer?

Kelly :)

A 810kg car accelerates from rest to 27m/s in a distance of 120m. That is the magitudeof the aver net force acting on the car?

Here is what I did.

1) step up my list of info:

Vi = 0

Vf = 27 m/s

a =

t =

x = 120 m

2) Figured I needed the F=MA equation

I have the mass so solve for acceleration.

3) a = Vf^2 - Vi^2 / 2x... which is: 27^2 / 2*120 = 3.075 m/s^2

I plugged A into the equation

4) F = (810 kg)(3.0375 m.s^2)

F = 2460.375

? did I get it?