Question

Calculations in kinetic and potential energy

Answer 1

To calculate kinetic energy (KE), you need the mass of the object and its velocity. The formula for kinetic energy is:

KE = 0.5 * m * v^2

Where:
- KE is the kinetic energy in joules (J)
- m is the mass of the object in kilograms (kg)
- v is the velocity of the object in meters per second (m/s)

To calculate potential energy (PE), you need the mass of the object, the acceleration due to gravity, and the height of the object. The formula for potential energy is:

PE = m * g * h

Where:
- PE is the potential energy in joules (J)
- m is the mass of the object in kilograms (kg)
- g is the acceleration due to gravity, which is approximately 9.8 meters per second squared (m/s^2)
- h is the height of the object in meters (m)

It's important to note that in calculations involving kinetic and potential energy, mass is typically measured in kilograms, velocity in meters per second, and height in meters, to ensure consistent units throughout the calculations.