A 3 kg object is moving in a straight line with a constant velocity of 5 m/s. Wh

Practice Questions

Q1
A 3 kg object is moving in a straight line with a constant velocity of 5 m/s. What is the net force acting on the object?
  1. 0 N
  2. 3 N
  3. 15 N
  4. 5 N

Questions & Step-by-Step Solutions

A 3 kg object is moving in a straight line with a constant velocity of 5 m/s. What is the net force acting on the object?
  • Step 1: Understand that the object has a mass of 3 kg and is moving at a constant velocity of 5 m/s.
  • Step 2: Recall that when an object is moving with constant velocity, it means that its speed and direction are not changing.
  • Step 3: Remember Newton's First Law of Motion, which states that an object at rest or moving at a constant velocity will remain in that state unless acted upon by a net external force.
  • Step 4: Since the object is not accelerating (its velocity is constant), there is no net external force acting on it.
  • Step 5: Conclude that the net force acting on the object is 0 N.
  • Newton's First Law of Motion – An object in motion stays in motion with the same velocity unless acted upon by a net external force.
  • Net Force – The overall force acting on an object, which determines its acceleration.
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