- #1
EEristavi
- 108
- 5
- Homework Statement
- 2 objects with masses m1 and m2 are connected by spring. The kinetic friction coefficient (Between objects and surface) is k. We apply horizontal force - F on object 1 and object 2 starts to move.
What is the Minimum Value of F.
- Relevant Equations
- Newton's Second Law
On object 2: There are only 2 horizontal forces - Friction and Tension (of the spring).
T = km2g
On Object 1: There are 3 horizontal forces and the minimum value for F is when:
F - km1g - km2g = 0
F = kg(m1 + m2)
However, Solution is:
F = kg(m1 + 0.5 m2)
Any opinion?
T = km2g
On Object 1: There are 3 horizontal forces and the minimum value for F is when:
F - km1g - km2g = 0
F = kg(m1 + m2)
However, Solution is:
F = kg(m1 + 0.5 m2)
Any opinion?