• Support PF! Buy your school textbooks, materials and every day products Here!

Physics Problem

  • Thread starter Kain
  • Start date
  • #1
1
0
considering i am not 2 smart at these things i really need help. it's probably the easiest problem out there, but like i said, i'm a dumbass. here it is

A 1.2 tonne car (a laser) is accelerated from the lights at 1m/sec/sec. What unbalanced force do the wheels exert on the ground??

I thought it might be 1.2 x 10^3 but im not sure

Thanks
 

Answers and Replies

  • #2
James R
Science Advisor
Homework Helper
Gold Member
600
15
F=ma

so the force on the car to make it accelerate is (1.2 x 10^3) x 1 = 1.2 x 10^3 N.

This force is applied by the ground to the wheels. There is an equal and opposite reaction force due to the wheels pushing on the ground, according to Newton's third law
 
  • #3
mukundpa
Homework Helper
524
3
Kain,
you are smart enough :smile: :smile:
 

Related Threads for: Physics Problem

  • Last Post
Replies
3
Views
813
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
887
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
6
Views
1K
Top