A tennis ball is tossed straight upward near Earth’s surface
PHYSICS · Subjective · CBSE · Physics · Work and Energy · Work and Energy
Problem
A tennis ball is tossed straight upward near Earth’s surface.
• Student A defines the system as the ball only.
• Student B defines the system as the ball plus Earth.
For each student, indicate whether gravitational potential energy is included inside the system or crosses the boundary, and explain in one sentence how this affects whether an external work term is needed in an energy statement.