I just need a little help getting past the first step. I have already converted rpm to rad/sec.
120 J are done on a fly wheel to raise its speed from 60rpm to 160 rpm. Find its moment of inertia.
How do I convert 120J to power
and how do I set up the inertia half
Does anyone know what specific gravity is? If something has a weight of specific gravity of 780, what does that mean, do I need to take something into account before calculating?
Thank you - Arden
a car starts from rest at a point 300m from a truch that is moving at a constant rate of 30m/s toward the car. IF the car accelerates at .8m/s2, determine the time it take for the car and the truck to meet.
s=300
This is what I did
Car:
Vi = 0, a = .8
Vf^2=2as = Vf=21.9
Vf=at
21.9/.8...