Abody whose mass is 40kg runs up a flight of 30steps, each 150mm high in 6 seconds. find the average power developed

What are the three ways that an object can accelerate

Suppose an objects initial velocity is 10m/s and it’s final velocity is 4 m/s. mass is constant. what can best be concluded about the object based in the work-energy theorem

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?