identify the energy type (2pts)
write the equation you used to solve the problems without any numbers or units substituted into it - just the variables (1pt),
show the work you did step by step to solve the problem (1pt),
write the correct, rounded answer (to the nearest tenth) with the correct units and circle/box your answer (1pt each or 3pts total)
You are riding on a roller coaster at your favorite amusement park. At the top of the first hill, your cart pauses momentarily. Determine the energy type that exists at that moment, is it potential or kinetic energy? The mass of the cart with everyone in it is 12.5 kg, at its maximum speed it travels 16.3 m/s and the height of the hill is 13.5 m. Calculate the energy the cart has at that moment.
At the top of the first hill, the energy type that exists is potential energy.
The equation used to solve the problem is:
Potential energy (PE) = mass (m) * gravity (g) * height (h)
The work done step by step to solve the problem is:
PE = 12.5 kg * 9.8 m/s^2 * 13.5 m
PE = 1701.75 kg*m^2/s^2
The correct, rounded answer is:
PE = 1701.8 J
Answer: 1701.8 J