Force & Energy Homework: Calculate Weight

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SUMMARY

The discussion focuses on calculating weight and the force required to move up a 70-degree incline. The weight of a mass of 48 kg is calculated using the formula w = mg, resulting in a weight of 470.4 N. The user confirms this calculation is correct and seeks further assistance on determining the force needed to push this weight up the incline. The problem also includes a request for the magnitude and direction of the horizontal force required for movement.

PREREQUISITES
  • Understanding of Newton's second law of motion
  • Knowledge of basic trigonometry for incline calculations
  • Familiarity with weight and mass conversion (e.g., pounds to kilograms)
  • Ability to apply force equations in physics
NEXT STEPS
  • Learn how to calculate forces on inclined planes using trigonometric functions
  • Study the concept of vector components in physics
  • Explore the relationship between weight, mass, and gravitational force
  • Investigate frictional forces and their impact on motion on inclines
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Students studying physics, particularly those focusing on mechanics and force calculations, as well as educators seeking to clarify concepts related to weight and inclined planes.

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Homework Statement



Assume that force the force required to walk from home to school is on a 70 degree angle to the horizontal surface. This force is equal to your weight.
mass is 120lb or 48 kg
a) calculate weight.

The Attempt at a Solution



a)
w=mg
w=48kg*9.8N/kg
w=470.4N
IS THAT RIGHT?
 
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470.4 N is the right weight. Now how much for does it take to push that weight up a 70 degree incline? I think that's the question.
 
eigenglue said:
470.4 N is the right weight. Now how much for does it take to push that weight up a 70 degree incline? I think that's the question.
b) calculate the mangitude and direction of the force that causes you to move in the horizontal direction.
 
b) calculate the mangitude and direction of the force that causes you to move in the horizontal direction.
 

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