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If a force of 30 N is applied to a mass of 10 kg, what is the net force acting o

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Question: If a force of 30 N is applied to a mass of 10 kg, what is the net force acting on the mass if there is a frictional force of 10 N opposing the motion?

Options:

  1. 20 N
  2. 30 N
  3. 40 N
  4. 10 N

Correct Answer: 20 N

Solution: 

Net force = applied force - frictional force = 30 N - 10 N = 20 N.

If a force of 30 N is applied to a mass of 10 kg, what is the net force acting o

Practice Questions

Q1
If a force of 30 N is applied to a mass of 10 kg, what is the net force acting on the mass if there is a frictional force of 10 N opposing the motion?
  1. 20 N
  2. 30 N
  3. 40 N
  4. 10 N

Questions & Step-by-Step Solutions

If a force of 30 N is applied to a mass of 10 kg, what is the net force acting on the mass if there is a frictional force of 10 N opposing the motion?
Correct Answer: 20 N
  • Step 1: Identify the applied force. In this case, the applied force is 30 N.
  • Step 2: Identify the frictional force that opposes the motion. Here, the frictional force is 10 N.
  • Step 3: To find the net force, subtract the frictional force from the applied force. This means you take 30 N (applied force) and subtract 10 N (frictional force).
  • Step 4: Calculate the net force: 30 N - 10 N = 20 N.
  • Step 5: The net force acting on the mass is 20 N.
  • Net Force Calculation – Understanding how to calculate net force by subtracting opposing forces from the applied force.
  • Frictional Force – Recognizing the role of friction as an opposing force that affects the net force on an object.
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