Question

Jonah is pushing his younger sister, Jessica, on a swing. If Jessica weighs 350 kilograms, how much higher above the ground must Jonah push her to increase her potential energy by 525 joules?

Answer 1

Jonah must push Jessica 1.50 meters higher above the ground to increase her potential energy by 525 joules.

Step-by-step explanation:

To calculate the height above the ground that Jonah must push Jessica to increase her potential energy by 525 joules, we can use the formula for potential energy which is given by the equation PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height. Rearranging the formula, we have h = PE / (mg).

Plugging in the given values, we have h = 525 J / (350 kg * 9.8 m/s^2) = 1.50 meters. Therefore, Jonah must push Jessica 1.50 meters higher above the ground to increase her potential energy by 525 joules.