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A 4 kg object is pulled with a force of 20 N. If the frictional force is 4 N, wh

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Question: A 4 kg object is pulled with a force of 20 N. If the frictional force is 4 N, what is the net force acting on the object?

Options:

  1. 16 N
  2. 20 N
  3. 24 N
  4. 4 N

Correct Answer: 16 N

Solution: 

Net force = applied force - frictional force = 20 N - 4 N = 16 N.

A 4 kg object is pulled with a force of 20 N. If the frictional force is 4 N, wh

Practice Questions

Q1
A 4 kg object is pulled with a force of 20 N. If the frictional force is 4 N, what is the net force acting on the object?
  1. 16 N
  2. 20 N
  3. 24 N
  4. 4 N

Questions & Step-by-Step Solutions

A 4 kg object is pulled with a force of 20 N. If the frictional force is 4 N, what is the net force acting on the object?
  • Step 1: Identify the applied force. The applied force is given as 20 N.
  • Step 2: Identify the frictional force. The frictional force is given as 4 N.
  • Step 3: Use the formula for net force. The formula is: Net force = Applied force - Frictional force.
  • Step 4: Substitute the values into the formula. So, Net force = 20 N - 4 N.
  • Step 5: Calculate the net force. 20 N - 4 N equals 16 N.
  • Step 6: State the result. The net force acting on the object is 16 N.
  • Net Force Calculation – Understanding how to calculate net force by subtracting frictional force from the applied force.
  • Frictional Force – Recognizing the role of friction in opposing motion and its impact on net force.
  • Newton's Second Law – Applying the principles of Newton's Second Law, which relates force, mass, and acceleration.
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