A 20 kg object is dropped from a height. What is the force acting on it just bef
Practice Questions
Q1
A 20 kg object is dropped from a height. What is the force acting on it just before it hits the ground?
0 N
20 N
200 N
10 N
Questions & Step-by-Step Solutions
A 20 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 20 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 F = mg, where F is the force (weight), m is the mass, and g is the acceleration due to gravity.
Step 4: Substitute the values into the formula. Here, m = 20 kg and g = 10 m/s².
Step 5: Calculate the force: F = 20 kg * 10 m/s² = 200 N.
Step 6: Conclude that the force acting on the object just before it hits the ground is 200 N.
Weight Calculation – The force acting on an object due to gravity, calculated using the formula F = mg, where m is mass and g is the acceleration due to gravity.
