Calculate the gravitational potential energy of a 2 kg mass at a height of 5 m.
Practice Questions
Q1
Calculate the gravitational potential energy of a 2 kg mass at a height of 5 m. (g = 9.8 m/s²)
98 J
19.6 J
39.2 J
49 J
Questions & Step-by-Step Solutions
Calculate the gravitational potential energy of a 2 kg mass at a height of 5 m. (g = 9.8 m/s²)
Step 1: Identify the mass (m) of the object. In this case, the mass is 2 kg.
Step 2: Identify the height (h) at which the object is located. Here, the height is 5 m.
Step 3: Identify the acceleration due to gravity (g). It is given as 9.8 m/s².
Step 4: Use the formula for gravitational potential energy (PE), which is PE = m * g * h.
Step 5: Substitute the values into the formula: PE = 2 kg * 9.8 m/s² * 5 m.
Step 6: Calculate the result: 2 * 9.8 * 5 = 98 J.
Step 7: Conclude that the gravitational potential energy is 98 Joules.
Gravitational Potential Energy – The energy an object possesses due to its position in a gravitational field, calculated using the formula PE = m * g * h.
