Question

The student lifts the 5.0kg object from the floor onto a table. He does 75J of work on the object in lifting it onto the table. State the amount of gravitational potential energy gained by the object due to being lifted onto the table.​

Answer 1

The 5.0kg object has gained 75 joules of gravitational potential energy when lifted onto the table by the student.

Step-by-step explanation:

When a student lifts a 5.0kg object from the floor onto a table and does 75J of work, the amount of gravitational potential energy (PEg) gained by the object is equal to the work done on the object. In physics, the relationship between work and gravitational potential energy is given by the equation PEg = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height the object is lifted. Since all of the work done on the object is used to lift it, the gravitational potential energy gained by the object is 75 joules.