A 20 kg child slides down a 3.0-m-high playground slide. She starts from rest, and her speed at the bottom is 2.0 m/s.
a. Describe the energy transfers and transformations occurring during the slide.
b. What is the change in the combined thermal energy of the slide and the seat of her pants?
Solution 24 E:
Step 1 of 2:-
The mass of the child is,
Height of the playground is,
Her speed at the bottom is,
Here we have to describe the energy transfers and transformations in the process.
At the beginning, it has gravitational potential energy because of the height. Later on while coming down, the potential energy got converted into the kinetic energy and thermal energy. The thermal energy comes from the friction between her pant and the inclined plane.