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rzn972
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Homework Statement
PART A only
Homework Equations
The Attempt at a Solution
The answer suppose to be mg sin theta- t cos alpha = 0 ( Newton's law).
15g sin36.9 = t cos 30
However, why don't we need a force of static friction?
Tension is a force that is transmitted through a string, rope, or cable when it is pulled tight by forces acting from opposite ends.
Tension is related to Newton's laws of motion through the third law, which states that for every action, there is an equal and opposite reaction. This means that the tension force in a string or rope is equal to the force applied on either end of the string in opposite directions.
When an object is connected to a string and a tension force is applied to that string, it can either accelerate or decelerate the object depending on the direction of the tension force. This is in accordance with Newton's second law, which states that the net force on an object is equal to its mass multiplied by its acceleration.
No, the tension force can never be greater than the applied force. This is because of the third law of motion, which states that the forces acting on an object are always equal and opposite. The tension force is simply a reaction to the applied force and cannot be greater than it.
Tension is typically measured in units of Newtons (N) using a device called a tension meter or a dynamometer. These devices measure the amount of force needed to stretch a string or rope to a certain length and can be used to determine the tension force in the string.