N's 2nd law: an eq'n for acceleration 'a'

  • #1
ms. confused
91
0
Hello!

I was given two formulae for my Physics lab: ma=mg-T and T=Ma (using a pulley).

ma--> net force on small object (paper clip)
M--> larger mass (glider)
mg--> force of gravity
a--> acceleration
T--> tension of ribbon used

I'm supposed to combine the two equations to get one equation for acceleration. I thought about arranging them this way, but I think I'm wrong:

T=Ma (1)
T=mg-ma (2)
0 = -mg + (Ma+ma)

(the last part is difinitely messed up!)

Hope some can help me out! :confused:
 

Answers and Replies

  • #2
whozum
2,221
1
if T = Ma and T = mg - ma then mg - ma = Ma
 

Suggested for: N's 2nd law: an eq'n for acceleration 'a'

Replies
4
Views
547
  • Last Post
Replies
3
Views
837
Replies
8
Views
370
Replies
27
Views
649
Replies
26
Views
468
Replies
8
Views
469
Replies
5
Views
602
Top