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A force of 10 N is applied to move a box 5 m across a frictionless surface. What

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Question: A force of 10 N is applied to move a box 5 m across a frictionless surface. What is the work done on the box? (2021)

Options:

  1. 10 J
  2. 20 J
  3. 50 J
  4. 5 J

Correct Answer: 20 J

Exam Year: 2021

Solution: 

Work done (W) = Force (F) × Distance (d) = 10 N × 5 m = 50 J.

A force of 10 N is applied to move a box 5 m across a frictionless surface. What

Practice Questions

Q1
A force of 10 N is applied to move a box 5 m across a frictionless surface. What is the work done on the box? (2021)
  1. 10 J
  2. 20 J
  3. 50 J
  4. 5 J

Questions & Step-by-Step Solutions

A force of 10 N is applied to move a box 5 m across a frictionless surface. What is the work done on the box? (2021)
  • Step 1: Identify the force applied to the box, which is 10 N.
  • Step 2: Identify the distance the box is moved, which is 5 m.
  • Step 3: Use the formula for work done, which is Work (W) = Force (F) × Distance (d).
  • Step 4: Substitute the values into the formula: W = 10 N × 5 m.
  • Step 5: Calculate the result: W = 50 J.
  • Work Done – Work done is calculated as the product of the force applied and the distance moved in the direction of the force.
  • Frictionless Surface – The absence of friction simplifies the calculation of work done, as no energy is lost to friction.
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