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A 2 kg object is dropped from a height. What is the force acting on it just befo

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Question: A 2 kg object is dropped from a height. What is the force acting on it just before it hits the ground? (2022)

Options:

  1. 2 N
  2. 9.8 N
  3. 19.6 N
  4. 29.4 N

Correct Answer: 19.6 N

Exam Year: 2022

Solution: 

The force acting on the object is its weight, F = mg = 2 kg × 9.8 m/s² = 19.6 N.

A 2 kg object is dropped from a height. What is the force acting on it just befo

Practice Questions

Q1
A 2 kg object is dropped from a height. What is the force acting on it just before it hits the ground? (2022)
  1. 2 N
  2. 9.8 N
  3. 19.6 N
  4. 29.4 N

Questions & Step-by-Step Solutions

A 2 kg object is dropped from a height. What is the force acting on it just before it hits the ground? (2022)
  • Step 1: Identify the mass of the object. In this case, the mass is 2 kg.
  • Step 2: Identify the acceleration due to gravity. On Earth, this is approximately 9.8 m/s².
  • Step 3: Use the formula for weight (force) which is F = mg, where F is the force, m is the mass, and g is the acceleration due to gravity.
  • Step 4: Plug in the values: F = 2 kg × 9.8 m/s².
  • Step 5: Calculate the force: F = 19.6 N.
  • Weight – The force acting on an object due to gravity, calculated as the product of mass and gravitational acceleration.
  • Gravitational Acceleration – The acceleration due to gravity at Earth's surface, approximately 9.8 m/s².
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