Answer:
the minimum value of torque is 101.7 N-m.
Explanation:
Given that,
Mass of bundle of shingles, m = 30 kg
Upward acceleration of the shingles,
The radius of the motor of the pulley, r = 0.3 m
Let T is the tension acting on the shingles when it is lifted up. It can be calculated as :
T-mg=ma
T=m(g+a)

Let
is the minimum torque that the motor must be able to provide. It is given by :

the minimum value of torque is 
G = 
Explanation:
Solving for G simply implies that we make G the subject of the formula:
Given equation:
F
= G 
To make G the subject of this expression follow these steps:
Multiply both sides of the equation by 
F
x
= G
x 
This gives:
F
= G 
Multiply both sides by 
F
x
=
x G 
Therefore:
G = 
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Answer: Guilt, Excitement, and Anger Bonus: Fear
Answer:
1 km / 15min
Explanation:
The average speed is calculated by simply doing space divided by time so:
2km / 30min that becomes 1km / 15min
Have a good day.