Question
Multiple Choice 1 point A1kg car is on a track 020 meters above the ground. Solve the problem: PE_(g)=? 4.9J 1.96J 19.6 J 0.49 J
Solution
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WesleyVeteran · Tutor for 12 years
Answer
The formula for gravitational potential energy (PE<sub>g</sub>) is:<br /><br />PE<sub>g</sub> = mgh<br /><br />Where:<br />* m = mass (in kg)<br />* g = acceleration due to gravity (approximately 9.8 m/s²)<br />* h = height (in meters)<br /><br />Given:<br />* m = 1 kg<br />* g = 9.8 m/s²<br />* h = 0.20 m<br /><br />Substituting the values:<br /><br />PE<sub>g</sub> = (1 kg) * (9.8 m/s²) * (0.20 m)<br />PE<sub>g</sub> = 1.96 J<br /><br />Therefore, the correct answer is **1.96J**.<br />
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