Why is Tension Greater Than ma in a Horizontal Pull Scenario?

Thread starter physicsgurl12
Start date Oct 10, 2011
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Tension

AI Thread Summary

In a horizontal pull scenario with a box being pulled at a 5-degree angle, the tension in the wire exceeds the product of mass and acceleration (ma) due to the vertical component of the tension counteracting the weight of the box. The force equation f = ma must account for both the horizontal and vertical components of the tension. A free body diagram is essential for visualizing these forces and their components. The tension not only facilitates horizontal acceleration but also supports the weight of the box, leading to a greater overall tension. Understanding these dynamics clarifies why tension is greater than ma in this context.

Oct 10, 2011

physicsgurl12

Homework Statement

a box withmass m is pulled with a constant a along a horizontal frictionless floor by a wire that makes a 5 degree angle above the horizontal. why is the tension greater than ma?

Homework Equations

f=ma

The Attempt at a Solution

i don't know where to start
f=t+mg

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Oct 10, 2011

SammyS

Staff Emeritus

Science Advisor

Homework Helper

Draw a Free Body Diagram.

Oct 10, 2011

lightgrav

Homework Helper

vector components: parallel the motion, and perpendicular to the motion.

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