Suspended Ceiling Lighting An 18-kg Bicycle Carrying A 62-kg Girl Is Traveling At A Speeed Of 7 M/s Squared...?

An 18-kg bicycle carrying a 62-kg girl is traveling at a speeed of 7 m/s squared...? - suspended ceiling lighting

a child of 70 kg is about 3 m above the ground in a tree. What is its potential energy?

90 - kg suspended 4m above the ground. What is the potential energy?