Question

A roller coaster is at the top of a 72 m hill and weighs 966 N. The coaster (at this moment) has ____________ energy. Calculate it.

Answer 1

Answer:

potential energy and 69,552 J

Step-by-step explanation:

PE = mgh

here F = mg

PE = 966 × 72

PE = 69,552 J

Answer 2

Given,

Height of roller coaster at the top of hill, $\[h = 72m\]$

Weight of roller coaster, $\[w = 966N\]$

Solution,

Calculate the energy.

This roller coaster contain energy in form of potential energy.

Potential energy, $\[P = mgh\]$

$\[\begin{array}{l} \Rightarrow P = wh\\ \Rightarrow P = 966 \times 72\\ \Rightarrow P = 69552Nm\end{array}\]$

Hence the energy of roller coaster is $\[69552Nm\]$.