Answer:
<h2>6 m/s²</h2>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
f is the force
m is the mass
From the question we have
We have the final answer as
<h3>6 m/s²</h3>
Hope this helps you
Answer:
it reduces friction
Explanation:
if you put oil or any liquid between the tool it will shift and change the shape as much as it needs to. It will smooth the bumps between the tools gears as they squeeze together making the friction reduce. It will slide and that reduces the friction.
i hope this helps im lowkey just guessing tho so sorry if it doesnt. lmk tho
Answer:
a) Tb = m (g + vb² / R)
, b) Tt = m (g - vt² /R), c) Tb = Ty + (vb² -vt²) /R
Explanation:
a) For this exercise we will use Newton's second law, at the bottom
Tb - W = m a
Where the acceleration is centripetal
a = v² / R
Tb = W + m vb² / r
Tb = m (g + vb² / R)
b) the tension at the top
-Tt -w = m a
Tt = W - m vt² / R
Tt = m (g - vt² / R)
c) write the two equations and solve system
Tb = m (g + vb² / R)
Tt = m (g - vt² / R) (-1)
We multiply by (1) and add
Tb -Ty = vb² /R -vt² /R
Tb = Ty + (vb² -vt²) / R
<span>The friction force ( µ . N ) must be enough to counter the gravity force ( m . g )
The Normal force from the rotating wall is the centripetal force = mv^2 / r
so with the lowest coefficient of friction ( 0.4 )
0.4 . v^2 / 2.5 = g
v^2 = 2.5 . 9.8 / 0.4
v = 7.83 m/s
T = 5Ď€ / 7.83 = 2.007 s
f = 0.5 Hz = 30 rpm</span>