Question

How much potintial energy is in a closed system where the height of the object is 2 m, and the mass is 10 kg?

Answer 1

Answer:

Answer: B. 196 J

• potential energy is calculated from the formula:

${ \tt{p.e = mgh}}$

• m = 10 kg

• g = 9.81 m/s²

• h = 2m

→ Substitute:

${ \tt{p.e = (10) \times (2) \times (9.81)}} \\ \\ → \: { \boxed{ \tt{potential \: energy = 196.2 \: \: joules}}}$

Answer 2

Answer:

D. 196 J

Explanation:

PE=mgh=10×9.8×2=196J