Dear Helpers,
I'm sitting since ours in front of a task and trying to solve it.
Attached you find a picture to the problem.
Given:
θ=28°
μs=0.4
μk=0.3
k=30N/m
m1=1kg
m2=2kg
x0=0
x1=1m > Spring is stretched
The question is:
Does m2 move up or downwards?
First thing I tried to solve it like this: I considered gravitation, friction and the force of the spring.
So I was thinking the following:
F(Spring)=k*x
F(Object2)=m2*g
F(Object1)=m1*g*sin(28) < is this sin(28) correct?
F(Friction)=μk*F(Normal)
What is in this case the normal Force (F(Normal))?
F(Spring) + F(Friction) > F(Object2) + F(Object1) > moves upwards
F(Spring) + F(Friction) < F(Object2) + F(Object1) > moves downwards
I do understand, that I need to sum up all the forces an compare them. But is my way correct? Do I forget to consider sth? Maybe somebody is able to help me.
b) Would be "When does m2 touch the table gently?
For task b)
F=kx^2
h=1m
Thanks in advance
Gio
I'm sitting since ours in front of a task and trying to solve it.
Attached you find a picture to the problem.
Given:
θ=28°
μs=0.4
μk=0.3
k=30N/m
m1=1kg
m2=2kg
x0=0
x1=1m > Spring is stretched
The question is:
Does m2 move up or downwards?
First thing I tried to solve it like this: I considered gravitation, friction and the force of the spring.
So I was thinking the following:
F(Spring)=k*x
F(Object2)=m2*g
F(Object1)=m1*g*sin(28) < is this sin(28) correct?
F(Friction)=μk*F(Normal)
What is in this case the normal Force (F(Normal))?
F(Spring) + F(Friction) > F(Object2) + F(Object1) > moves upwards
F(Spring) + F(Friction) < F(Object2) + F(Object1) > moves downwards
I do understand, that I need to sum up all the forces an compare them. But is my way correct? Do I forget to consider sth? Maybe somebody is able to help me.
b) Would be "When does m2 touch the table gently?
For task b)
F=kx^2
h=1m
Thanks in advance
Gio
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