Question

Given: Each block has masses m1 = m2 =
m3 = m and the coefficient of kinetic friction
is μ. The magnitude of F equals twice the
total frictional force.
Apply a horizontal force F in pushing an ar-
ray of three identical blocks in the horizontal direction.
Find the acceleration.

Answer 1

I think the answer is a=2 μg , just wanted to check my answer.

Answer 2

or 1 (mu)g

Answer 3

so a=2 μg is correct as well?

Answer 4

3ma= 6 mu m g - 3 mu m g

Answer 5

no a= 1 mu m g

Answer 6

thats not listed as one of my options. :/

Answer 7

sorry... acceleration will be (mu* g) only

Answer 8

1. a =
g
3
2. a = 3 μ g
3. a = 3 g
4. a =
μ g
2
5. a =
g
2
6. a =
μ g
3
7. a = 2 g
8. a = g
9. a = 2 μ g
10. a = μ g
Those are my options would that be number 10

Answer 9

yes

Answer 10

thanky you i beleive i got it now, you just subtract the right side then divid by three to get the acceleration?

Answer 11

yes...:)

Answer 12

thanks again!