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A 2 kg block is pulled with a force of 10 N. What is the frictional force if the

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Question: A 2 kg block is pulled with a force of 10 N. What is the frictional force if the block accelerates at 3 m/s²?

Options:

  1. 4 N
  2. 6 N
  3. 10 N
  4. 8 N

Correct Answer: 6 N

Solution: 

Net force = mass * acceleration = 2 kg * 3 m/s² = 6 N. The applied force is 10 N, so frictional force = applied force - net force = 10 N - 6 N = 4 N.

A 2 kg block is pulled with a force of 10 N. What is the frictional force if the

Practice Questions

Q1
A 2 kg block is pulled with a force of 10 N. What is the frictional force if the block accelerates at 3 m/s²?
  1. 4 N
  2. 6 N
  3. 10 N
  4. 8 N

Questions & Step-by-Step Solutions

A 2 kg block is pulled with a force of 10 N. What is the frictional force if the block accelerates at 3 m/s²?
  • Step 1: Identify the mass of the block, which is 2 kg.
  • Step 2: Identify the acceleration of the block, which is 3 m/s².
  • Step 3: Use the formula for net force, which is Net Force = mass * acceleration.
  • Step 4: Calculate the net force: 2 kg * 3 m/s² = 6 N.
  • Step 5: Identify the applied force, which is 10 N.
  • Step 6: Use the formula for frictional force: Frictional Force = Applied Force - Net Force.
  • Step 7: Calculate the frictional force: 10 N - 6 N = 4 N.
  • Newton's Second Law – This law states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration.
  • Frictional Force – The force that opposes the motion of an object, calculated as the difference between the applied force and the net force.
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