you need to add units to the measurements. Ill assume the following: 330 kilograms, 3.8 meters, 23 degrees.
mass*gravity*amount of gravity working=
330*9.8*cos(90-23)=force or work of gravity
if the man fights gravity the entire time then his force is equal and opposite to gravity.
A 330- piano slides 3.8 down a 23 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline.
a.Determine the work done by the force of gravity.
b.Determine the work done by the man on the piano.
1 answer
1 answer