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Really simple Question Just want to see if I'm applying correctly

  • Thread starter binahkitty
  • Start date
  • #1
Say an object of

mass = 3kg

moves down an INCLINE of a

distance = 0.4 m
In a time = .25 sec

What is the NET Force acting on the object?

I think I'm going about this with the right equations and what not...but I want to make sure....

Thanks!
 

Answers and Replies

  • #2
Kurdt
Staff Emeritus
Science Advisor
Gold Member
4,812
6
Well first you have to calculate the acceleration then apply to Newton's second law F=ma.
 
  • #3
Andrew Mason
Science Advisor
Homework Helper
7,605
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binahkitty said:
Say an object of

mass = 3kg

moves down an INCLINE of a

distance = 0.4 m
In a time = .25 sec

What is the NET Force acting on the object?
What is the speed at time t=0? Is it at rest?

AM
 
  • #4
65
1
Assuming it starts at rest and assuming it's uniform acceleration, the acceleration would be obtained from the equation x = x0 + vt + 0.5a*t^2 (apologies, I don't know the board code for making pretty equations just yet, this is my first post). Then, as Kurdt said, you can use F = ma to work out the net force on the object. :smile:
 
  • #5
J77
1,076
1
binahkitty said:
I think I'm going about this with the right equations and what not...but I want to make sure....
Where's your working then?

:rolleyes:
 

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