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If a 150 kg object is on a slope of 15 degrees, what is the normal force acting

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Question: If a 150 kg object is on a slope of 15 degrees, what is the normal force acting on it?

Options:

  1. 1430 N
  2. 1500 N
  3. 1600 N
  4. 1700 N

Correct Answer: 1430 N

Solution: 

The normal force N = mg * cos(θ) = 150 kg * 9.81 m/s² * cos(15°) ≈ 1430 N.

If a 150 kg object is on a slope of 15 degrees, what is the normal force acting

Practice Questions

Q1
If a 150 kg object is on a slope of 15 degrees, what is the normal force acting on it?
  1. 1430 N
  2. 1500 N
  3. 1600 N
  4. 1700 N

Questions & Step-by-Step Solutions

If a 150 kg object is on a slope of 15 degrees, what is the normal force acting on it?
  • Normal Force Calculation – The normal force is the component of the gravitational force acting perpendicular to the surface of the slope.
  • Trigonometric Functions – Understanding how to apply cosine to find the component of the weight acting perpendicular to the slope.
  • Weight and Mass Relationship – Recognizing that weight is the product of mass and gravitational acceleration.
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