How Does Torque Affect a Cart Overcoming a Step?

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SUMMARY

The discussion focuses on calculating the torque experienced by a garden cart loaded with firewood as it encounters an 8.0 cm high step. The cart has a mass of 64 kg and a wheel diameter of 60 cm. The torque is derived from the equation torque = rFsin(angle), where the angle is determined by the height of the step and the force applied by the person pushing the cart. The participant is specifically analyzing whether the torque due to the step is zero or a non-zero value based on the applied force.

PREREQUISITES
  • Understanding of torque calculations using the formula torque = rFsin(angle)
  • Familiarity with Newton's laws of motion
  • Knowledge of basic physics concepts related to force and motion
  • Ability to analyze forces acting on objects in equilibrium
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  • Research how to calculate torque in different scenarios, including inclined planes
  • Study the effects of center of mass on stability and torque
  • Learn about the relationship between force, angle, and torque in practical applications
  • Explore examples of torque calculations involving wheels and steps in physics problems
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in understanding the mechanics of torque and its application in real-world scenarios, particularly in relation to carts and wheeled vehicles.

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Homework Statement


A garden cart loaded with firewood is being pushed horizontally when it encounters a step 8.0 cm high, as shown in the figure. The mass of the cart and its load is 64 kg, and the cart is balanced so that its center of mass is directly over the axle. The wheel diameter is 60 cm. You are pushing the cart horizontally by a handle.


Homework Equations


torque = rFsin(angle)
Newton's laws



The Attempt at a Solution


I tried to find the torque that occurs as a result of the step applying a force on wheel. I originally thought that the force the person was applying was equal to the force that the wheel applied to the step. Thus, since the step is 8 cm high, I thought that the torque due to the step was .30(F)sin(74.5). But I am having trouble figuring out if this is equal to zero or something else?
 
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