metic energy: KE=1/2mv^2 Total mechanical energy: ME=PE+KE Practice problems: carriage has __ energy. Calculate it. A. baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 Kg. The

The baby carriage has **potential** energy.<br /><br />Here's how to calculate it:<br /><br />* **Potential Energy (PE) = mgh**<br /><br />Where:<br /><br />* **m** = mass (in kg)<br />* **g** = acceleration due to gravity (approximately 9.8 m/s² on Earth)<br />* **h** = height (in meters)<br /><br />Given:<br /><br />* m = 12 kg<br />* g = 9.8 m/s²<br />* h = 21 m<br /><br />Calculation:<br /><br />PE = (12 kg) * (9.8 m/s²) * (21 m)<br />PE = 2469.6 Joules<br /><br />Therefore, the baby carriage has a potential energy of **2469.6 Joules**.<br />