## anna.s214 2 years ago A car with a mass of 1.2 × 103 kilograms starts from rest and attains a speed of 20 meters/second in 5 seconds. What net force acted on the car to cause that acceleration? A. 3.0 × 102 newtons B. 6.0 × 102 newtons C. 1.2 × 103 newtons D. 4.8 × 103 newtons E. 1.2 × 104 newtons

1. souvik

@SNIIX18

2. SNIIX18

yes

3. theEric

Hi, you there?

4. anna.s214

@SNIIX18 this is the question I need help in (:

5. anna.s214

HI to you two eric..

6. theEric

I can help, if SNIIX18 isn't able yet. The car is accelerated because there is a force on it. This causes it to gain \(20m/s\) in \(5s\). Can you tell me the acceleration, then?

7. anna.s214

is it E?

8. theEric

That's not what I got, and I think I did it correctly...

9. anna.s214

what did you get?

10. theEric

I won't just tell you! :P I don't often give answers. I make sure people get there themselves.

11. anna.s214

omg really just this once?

12. anna.s214

or is it c?

13. theEric

Haha, nope! Sorry. I want to see your work, or you learning, or your understanding!

14. theEric

And the "nope" was to your "just this once." I'm going to be stubborn, now, and not help you eliminate answers randomly. You'll have to get an answer from somebody else. I'll only guide you to it.

15. anna.s214

LMAO! I already found it don't worry!

16. theEric

Hm?

17. theEric

Found it for sure? Found acceleration, and multiplied that by mass to see what the force must be?

18. annahbellll

uggh i need help on same question this does not help

19. joshb123

whats the acceleration