Not sure if that is what it is or not sure how to calculate it? Why not do the calculation anyway and see if the answer inspires you with any confidence.Madelin Pierce said:Homework Statement
Spin 340 gram mass at the end of a 72 cm string in a horizontal circle around head 2.5 rev/s. Calculate tension
Homework Equations
The Attempt at a Solution
I know tension might be equal to mass times centripetal acceleration, but I’m not sure
How so?Dadface said:This must be a trick question.
Hint: Is the string horizontal?Madelin Pierce said:I know tension might be equal to mass times centripetal acceleration, but I’m not sure
Dadface said:This must be a trick question.
The question is unclear and implies that the string is horizontal, which is impossible.gneill said:How so?
I suppose you could do a calculation assuming the string was horizontal and IF the Tension calculates to many times the weight force, the assumption was reasonable - given the answer will be to 2 significant figures only. Otherwise the question is quite tricky, and the free-body diagram is a good, next, starting pointDadface said:The question is unclear and implies that the string is horizontal.
No, it only says that the mass moves in a horizontal circle. Students should be savvy enough to know (or discover) that the string will not be horizontal. It's a learning opportunity, not a trick.Dadface said:The question is unclear and implies that the string is horizontal.
Madelin Pierce said:The Attempt at a Solution
I know tension might be equal to mass times centripetal acceleration, but I’m not sure
Tension is the force applied to an object in order to stretch or deform it. In the case of a string spinning horizontally, tension refers to the force being applied to the string in order to keep it taut and maintain its circular motion.
To calculate tension, you need to know the mass of the object, the acceleration due to gravity, and the angle at which the string is spinning horizontally. From there, you can use the formula T = mgcosθ, where T is tension, m is mass, g is acceleration due to gravity, and θ is the angle at which the string is spinning.
The tension in a string spinning horizontally is affected by several factors, including the mass of the object, the acceleration due to gravity, the angle at which the string is spinning, and any external forces acting on the string.
Finding the tension of a string spinning horizontally is important because it helps us understand the forces at play and how they affect the motion of the object. It also allows us to make predictions and calculations about the behavior of the string and the object attached to it.
The tension in a string spinning horizontally can be adjusted by changing the angle at which the string is spinning, increasing or decreasing the mass of the object, or by applying external forces to the string. These adjustments will alter the tension and ultimately affect the motion of the object.