- #1
navneet9431
Gold Member
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Are you trying to invoke Newton's 2nd law or Newton's 3rd law? What, if anything, do either have to say about the situation?Is it necessary that the applied force F is equal to the spring force 'kx'?
Are you trying to invoke Newton's 2nd law or Newton's 3rd law? What, if anything, do either have to say about the situation?
Is the mass stationary?
The way you've drawn the picture, it looks like F is a separate force applied to the mass, not the spring force. You'll have to tell us what the drawing means - you drew it! (presumably).View attachment 232217
Is it necessary that the applied force F is equal to the spring force 'kx'?
Make the spring as weak as you like. Would F be zero?No
The way you've drawn the picture, it looks like F is a separate force applied to the mass, not the spring force. You'll have to tell us what the drawing means - you drew it! (presumably).
Please write down for us your Newton's 2d law force balance equation on the mass M.
Perfect. Does that answer your question?F-kx=ma
In that case it can have literally any value you choose to give it.Yes,F(on right) is a separate force applied to mass m other than the spring force acting on the left side.
Perfect. Does that answer your question?
But is it possible that F=kx in any condition?
If the mass is stationary, or if F is applied in such a way that the mass is moving at a constant velocity.
Zz.
But is it possible that F=kx in any condition?