A 5 kg object is dropped from a height. What is the force acting on it just befo

Practice Questions

Q1
A 5 kg object is dropped from a height. What is the force acting on it just before it hits the ground?
  1. 5 N
  2. 10 N
  3. 15 N
  4. 20 N

Questions & Step-by-Step Solutions

A 5 kg object is dropped from a height. What is the force acting on it just before it hits the ground?
  • Step 1: Identify the mass of the object. In this case, the mass is 5 kg.
  • Step 2: Understand that the force acting on the object just before it hits the ground is its weight.
  • Step 3: Use the formula for weight, which is W = mg, where W is weight, m is mass, and g is the acceleration due to gravity.
  • Step 4: Substitute the values into the formula. Here, m = 5 kg and g = 10 m/s².
  • Step 5: Calculate the weight: W = 5 kg * 10 m/s² = 50 N.
  • Step 6: Conclude that the force acting on the object just before it hits the ground is 50 N.
  • Weight – The force acting on an object due to gravity, calculated as the product of mass and gravitational acceleration.
  • Free Fall – The motion of an object under the influence of gravitational force only, with no other forces acting on it.
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