Question

A particular roller coaster has a mass of 3500 kg, a height of 4.0, and a velocity of 12m/s. What is the potential energy? If needed, use g=10.m/s^2

Answer 1

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Gravitational Potential Energy of an object is calculated by formula ~

$\large\boxed{\sf P = mgh}$

where,

• m = mass of the object = 3500 kg

• g = Acceleration due to gravity = 12 m/s²

• h = height attained by the object = 4 m

Now, let's calculate its potential energy ~

• $3500 \times 10 \times 4$

• $140000 \: \: joules$

• $140 \: \: kj$