Answer:
The amount of work is 89600 ft-lb.
Explanation:
Given that,
Length of the cable = 160 ft
Weight density = 7 lb/ft
Weight of cable to be filled = 7(160-x)
We need to calculate the amount of work
Using formula of work done
On integration
Hence, The amount of work is 89600 ft-lb.
Considering the equation for gravitational potential energy, PE=mgh, where m as mass, g as the acceleration due to gravity, and h has the height.
Substituting the numbers given, you’ll get (taking g as 9.81)
PE = 5 x 9.81 x 10
PE = 490.5 J
Therefore the gravitational potential energy will be 490.5 J
Answer:
36 joule
Explanation:
The formula of kinetic energy is 1/2 mv2.
Answer:
D is the correct answer for this question.
Explanation:
I had done this already