<h2>Answer to Q1:
</h2>
<u>A unit that is equal to 33 000 ft-lbs/min or 550 ft-lbs/s is the</u><u> horsepower</u>
<h2>Explanation:</h2>
Prefix or symbol for horsepower is: hp
Prefix or symbol for foot pound per minute is: ft-lb/min.
One horsepower converted into foot pound per minute equals = 33,000.00 ft-lb/min
1 hp = 33,000.00 ft-lb/min
So horsepower is the correct answer
<h2>Answer to Q2:
</h2>
The work done is 36456 J
<h2>
Explanation:
</h2>
Length of corridor = 14.33 m
Length of 3 corridors = 14.33 x 3 = 42.99
And,
Force = 848
As we know Work = Force x Displacement
Work = 848 x 42.99 = 36456 J
<h2>Answer to Q3:
</h2>
The velocity will be 0.14 m/s
<h2>Explanation:
</h2>
Since the length is given as 42.00 in the previous questions so we will use the same length
Now the time given is 5 minutes which is equal to 300 seconds
As we know velocity = distance / time
Velocity = 42.99 / 300
Velocity = 0.14 m/s
<h2>Answer to Q4:
</h2>
Centripetal acceleration = 0.54 m/s^2
<h2>Explanation:
</h2>
The centripetal acceleration is given by V^2 / r
So centripetal acceleration = 0.57 / 0.6
Centripetal acceleration = 0.54 m/s^2
Therefore 0.54 is the correct answer
Answer to Q5
The answer is 46.67 m/min
Explanation:
From the question statement we observe that
r=3.79 m and t=.51 min
We have to find distance covered by a cog which is equal to the circumference of gears rotation.
d=2πr
d=2π(3.79)
d=23.8 m
so putting the values of d and t in the velocity formula we get
v=23.8/.51
v=46.67 m/min which is the answer.
Answer to Q 6
The answer is 23.8 m
Explanation:
From the question statement, we observe that
r=3.79 m
The distance is equal to the circumference of gears rotation.
So, the formula for distance is d=2πr
d=2π(3.79)
d=23.8 m which is the correct answer
<h2>Answer to Q 7
</h2>
Power = 245 Watts
<h2>Explanation:
</h2>
The power formula is
P = Work / time
Here work = potential energy
Potential Energy = mgh
So
Power = mgh / time
Power = 50 x 9.8 x 1 and divided by 2
Power = 490 / 2
Power = 245 Watts
