Tension of string when an impulse is applied

In summary, there are two particles, A and B, suspended under a ceiling by light strings of lengths L1 and L2. Particle A is given a horizontal strike and has an instantaneous speed of v. The question asks for the tension of the two strings and how to relate it to the momentum and force. It is noted that particle B does not move due to the strike, and the upper mass is forced to move in a circular arc, suggesting a net force acting on it. The lower mass does not move in the first instant and the movement of the chain is not simple.
  • #1
jessicaw
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Homework Statement


A particle A (mass m1) is suspended under ceiling by a light string of length L1. Another light string length L2 is connected to A at one end and connected to particle B(mass m2). They are stable under gravbity at first. Suddenly a horizontal strike is given to A and A has instanteous speed v. What is the tension of the 2 strings?


Homework Equations


mv=change of momentum= impluse?


The Attempt at a Solution


I think B does not move at all as the strike is to A.
But mv is impluse and tension is force. How to relate them?
I also don't know how to calculate the angle? help!
 

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  • #2
urgent!11
 
  • #3
very urgent i have uploaded the question now help please!
 
  • #4
is it due to the implusive tension?
 
  • #5
Consider the fact that the upper mass, confined by the string l1, is forced to move in a circular arc. What must the net force on it be?
 
  • #6
how about the lower mass does it move?thx
 
  • #7
The movement over time of the lower mass is not simple.
In the first istant (while upper mass has already a speed of v) lower mass doesn't move.
Can you guess why ?

What about the chain ? Any news ?
 

Related to Tension of string when an impulse is applied

1. What is tension of a string?

The tension of a string refers to the amount of force or pull that is exerted on the string. It is measured in units of newtons (N).

2. How is tension affected when an impulse is applied to a string?

When an impulse is applied to a string, the tension in the string increases. This is because the impulse, which is a sudden change in momentum, causes the string to experience a sudden force that pulls on it.

3. What factors affect the tension of a string when an impulse is applied?

The tension of a string when an impulse is applied is affected by the mass and velocity of the object delivering the impulse, as well as the length and elasticity of the string itself.

4. Is there a mathematical equation to calculate tension when an impulse is applied?

Yes, the tension of a string when an impulse is applied can be calculated using the equation T = mΔv/Δt, where T is the tension, m is the mass of the object delivering the impulse, Δv is the change in velocity of the object, and Δt is the time duration of the impulse.

5. How does the tension of a string affect the motion of objects attached to it?

The tension of a string plays a crucial role in the motion of objects attached to it. It determines the speed and direction of the objects' motion, as well as the amount of force required to keep them in motion. Higher tension will result in faster and more forceful motion, while lower tension will result in slower and less forceful motion.

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