Question

question 12 of 25 a bird flies from the ground to a height of 200 m. if the bird has a mass of 1.5 kg, how much gravitational potential energy does it gain? a. 2940 j b. 300 j c. 550 j d. 1960 j

Explanation:

Step1: Recall potential - energy formula

The formula for gravitational potential energy is $U = mgh$, where $m$ is the mass, $g$ is the acceleration due to gravity ($g= 9.8\ m/s^{2}$), and $h$ is the height.

Step2: Substitute given values

Given $m = 1.5\ kg$, $h = 200\ m$, and $g = 9.8\ m/s^{2}$. Substitute these values into the formula: $U=1.5\times9.8\times200$.
First, calculate $1.5\times9.8 = 14.7$. Then, $14.7\times200=2940\ J$.

Answer:

A. 2940 J