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A block of mass 2 kg is placed on a frictionless surface and is pushed with a fo

Practice Questions

Q1
A block of mass 2 kg is placed on a frictionless surface and is pushed with a force of 10 N. What is the acceleration of the block?
  1. 2 m/s²
  2. 5 m/s²
  3. 10 m/s²
  4. 20 m/s²

Questions & Step-by-Step Solutions

A block of mass 2 kg is placed on a frictionless surface and is pushed with a force of 10 N. What is the acceleration of the block?
Correct Answer: 5 m/s²
  • Step 1: Identify the mass of the block, which is 2 kg.
  • Step 2: Identify the force applied to the block, which is 10 N.
  • Step 3: Recall Newton's second law of motion, which states that Force (F) equals mass (m) times acceleration (a), or F = ma.
  • Step 4: Rearrange the formula to solve for acceleration (a): a = F/m.
  • Step 5: Substitute the values into the formula: a = 10 N / 2 kg.
  • Step 6: Calculate the acceleration: a = 5 m/s².
  • Newton's Second Law – This law states that the force acting on an object is equal to the mass of that object multiplied by its acceleration (F = ma).
  • Frictionless Surface – The absence of friction means that all the applied force contributes to the acceleration of the block.
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