Question

A 0.60 kg mass is attached to a 0.6 m string and displaced at an angle of 15 degrees before it is released. 1)What is the potential energy of the pendulum? 2) What is the angular frequency of the pendulum? What is the height of its displacement? 4) What is the velocity of the pendulum at the lowest point in its swing?

Answer 1

a man pushes a lawn mower 50 feet in 5 second by exerting a force of 30 pounds at an angle of 53

Answer 2

a man pushes a lawn mower 50 feet in 5 second by exerting a force of 30 pounds at an angle of 53 with the horizon. find the work done and the average power expended?

Answer 3

P.E=mgh=,m=0.60kg,g=0.6g,h=15ms-1square 0.60*0.6*15=?