Question

1. a 400 gram (g) ball is placed on top of a table. what measurement is needed to calculate the potential energy of the ball? volume of the ball vertical distance (height) from the ball to the floor density of the ball horizontal distance (width) from the edge of the table to the ball

Explanation:

The formula for gravitational potential energy is \( U = mgh \), where \( m \) is mass, \( g \) is the acceleration due to gravity (a constant), and \( h \) is the vertical height. Given the mass (\( m = 400\ g\)), the only other variable needed from the options is the vertical distance (height) \( h \) (since \( g \) is a known constant). Volume (\( V \)), density (\(
ho=\frac{m}{V} \)), and horizontal distance (\( x \)) are not part of the potential - energy formula \( U = mgh \).

Answer:

vertical distance (height) from the ball to the floor