please help me with my question I will like and mark as brainliest for the first correct answer due tomorrow morning
1 answer:
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Answer:
15.75 m
Explanation:
First, let's look at the top brick by itself. In order for it not to tip over the bottom brick, its center of gravity must be right at the edge of the bottom brick. So the edge of the top brick must be 10.5 m from the edge of the bottom brick.
Now let's look at both bricks as a combined mass. We know the total length of this combined brick is 10.5 m + 21 m = 31.5 m. And we know that for it to not tip over the edge of the surface, its center of gravity must be at the edge. So the edge of the combined brick must be 31.5 m / 2 = 15.75 m from the edge of the surface.
Answer:
Explanation:
Given
mass of wheel m=13 kg
radius of wheel=1.8 m
N=469 rev/min
t=16 s
Angular deceleration in 16 s
Moment of Inertia
Change in kinetic energy =Work done
Change in kinetic Energy
(a)Work done =50.79 kJ
(b)Average Power