This may shock you:
We NEVER feel speed, velocity, or motion, as long as it's constant.
We only feel CHANGES in speed, velocity, or motion.
That means speeding up, slowing down, or changing direction.
As long as we're moving in a straight line at a constant speed, we don't feel anything.
Answer:60 rev/min
Explanation:
Given
angular speed of first shaft 
Moment of inertia of second shaft is seven times times the rotational speed of the first i.e. If I is the moment of inertia of first wheel so moment of inertia of second is 7 I
As there is no external torque therefore angular momentum is conserved
Answer:
Explanation:
check the attached for the solution
Answer:
72.324 J
Explanation:
Formula for gravitational potential energy is given by;
GPE = mgh.
Where;
m = mass
g = acceleration due to gravity
h = height
We are given;
m = 4.1 kg
h = 1.8 m
Thus;
GPE = 4.1 × 9.8 × 1.8 = 72.324 J
