142k views
5 votes
How much potential energy does a 31kg kid have are at the top of a 2.2 meter high slide

User Jacobsa
by
6.9k points

1 Answer

2 votes

U=669.042J

Mass of the child (m) = 25 kg

Speed of the chile (v) = 5 m/s

Height of the slide (h) = 4 m

Now, the potential energy of the child

Now, the kinetic energy of the child

Now, the energy lost in the friction

(

User Bahri Noredine
by
7.5k points