A 110 kg fire-fighter descends down a pole. He experiences 530N of friction.
d. Determine the fire-fighters weight
e. Draw an FBD
f. Determine the Fnet

Identify the type of synthetic material used in each object

What is the measure of a change in an objects velocity?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?