A 10 kg object is dropped from a height of 20 m. What is its speed just before i
Practice Questions
Q1
A 10 kg object is dropped from a height of 20 m. What is its speed just before it hits the ground? (Assume no air resistance)
10 m/s
14 m/s
20 m/s
28 m/s
Questions & Step-by-Step Solutions
A 10 kg object is dropped from a height of 20 m. What is its speed just before it hits the ground? (Assume no air resistance)
Conservation of Energy – The principle that the total energy in a closed system remains constant, allowing potential energy to convert into kinetic energy.
Kinematics – The study of motion, specifically how objects move under the influence of forces.
Gravitational Potential Energy – The energy an object possesses due to its position in a gravitational field, calculated as mgh.
Kinetic Energy – The energy an object has due to its motion, calculated as 0.5mv².
