Each of the four wheels of a car pushes on the road with a force of 4.0 x 10³ N [down]. The driving force on the car is 8.0 x 10³ N [W]. The frictional resistance on the car is 6.0 x 10³ N [E]. Calculate the following:(adsbygoogle = window.adsbygoogle || []).push({});

(a) mass of the car

(b) net force on the car

(c) car's acceleration

For Fnet, would u also add 4(4.0 x 10³ N [up]) to the rest of vectors to cancel out the force all the tires have on the road? Or:

8.0 x 10³ N [W] + 6.0 x 10³ N [E]= 2.0 x 10³ N [W]

2.0 x 10³ N [W] + 4(4.0 x 10³ N [down])= Fnet

?!

I just did all that on my phone.. I'm desperate for some help :(

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# Homework Help: Help with F=ma

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