Unit 2.2: Analyzing Energy in Systems - Part 2

A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building. How much gravitational potential energy does she have at the top of the building?

• 43982.4 J
• 63982.3 J
• 43962.4 J
• 83942.4 J

A pitcher throws a 0.145 kg baseball at a velocity of 30.0m/s. How much kinetic energy does the ball have?

• 65.35 J
• 87.25 J
• 23.45 J
• 65.25 J

Where would this baseball have the least amount of kinetic energy?

• W

• X

• Y

• Z

The coaster at B is at -

• Maximum PE, Minimum KE

• Minimum PE, Minimum KE

• Minimum PE, Maximum KE

• Maximum PE, Maximum KE

What is the GPE at point A

• 14 J

• 12 J

• 6 J

• 8 J

What is the KE at point D?

• 14 J

• 12 J

• 6 J

• 8 J

What is the Total Energy of the system?

• 14 J

• 12 J

• 6 J

• 8 J

What is the Kinetic Energy at point B?

• 500,000 J

• 400,000 J

• 300,000 J

• 50,000 J

What is the Total Mechanical Energy at point A?

• 500,000 J

• 400,000 J

• 200,000 J

• 50,000 J

What is the GPE at point E?

• 500,000 J

• 250,000 J

• 300,000 J

• 100,000 J