Question

. A roller coaster is at the top of a 42 m hill and weighs 500 N. The

coaster (at this moment) has _________________ energy. Calculate it

Answer 1

Answer:The roller coaster at the top of the 42 m hill has gravitational potential energy. Gravitational potential energy is the energy an object possesses due to its position relative to the ground.

To calculate the gravitational potential energy, we can use the formula:

Gravitational Potential Energy = Mass * Acceleration due to gravity * Height

In this case, the weight of the roller coaster can be used as the mass (since weight is the force exerted by gravity on an object) and the height is given as 42 m. The acceleration due to gravity is approximately 9.8 m/s².

So, the gravitational potential energy of the roller coaster can be calculated as follows:

Gravitational Potential Energy = 500 N * 9.8 m/s² * 42 m

Gravitational Potential Energy = 205,800 J (joules)

Therefore, at the top of the hill, the roller coaster has 205,800 joules of gravitational potential energy.

Step-by-step explanation: