Question

a 0.5 kg bird is perched on a wire 20 m above the ground. the birds gravitational potential energy (peg) is

Explanation:

Step1: Recall the formula for gravitational potential energy

The formula for gravitational potential energy is \(PE_g = mgh\), 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 the given values into the formula

Given \(m = 0.5\ kg\), \(h = 20\ m\), and \(g = 9.8\ m/s^2\).

$$
LATEXBLOCK0
$$

Step3: Perform the calculation

$$
LATEXBLOCK1
$$

Answer:

\(98\ J\)