The total kinetic energy of cylinder at that instant is (1/2)mv² where m is the mass of the cylinder.
Kinetic energy is actually acquired by the body when it is travelling with some speed. In this universe energy never creates never destroy, it actually converts from one form to another.
Kinetic energy has various types like:
- Rotational kinetic energy
- Radiant kinetic energy
- Thermal kinetic energy
- Sound kinetic energy
- Electrical kinetic energy.
When any body is holding any particular height, in that case it has potential energy.
There are various theorems which are actually derived from the kinetic energy. One of them is work energy theorem.
We know very well that formula of kinetic energy is (1/2)mv²
Hence, is (1/2)mv².
To know more about kinetic energy, visit here:
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(Complete question) is:
Suppose that at a certain instant the velocity of the cylinder is v and mass is m. What is its total kinetic energy, at that instant?
I think the best would be B my friend
Answer:
A = 70cm³
B= 805 grams
Explanation:
(a) V = L×B×H
= 7cm × 5cm × 2cm
= 35cm × 2cm
= 70cm³
(b) Mass= volume × Density
= 70cm³ × 11.5g/cm³
=805 grams
I hope this will help you ...
Never mind i’m pretty sure
The minimum input force she'll need to lift the ball is 35 N.
Explanation:
Mechanical advantage of a single pulley is 1. As, she applies 70 N of force to lift the bowling ball, so the output force(weight of the ball) is also 70 N.
Now, adding another pulley gives a mechanical advantage of 2. We have,
M.A = (Output Force)/(Input Force)
Substituting the values we get,
= 35 N
Input force equals to 35 N needs to be applied.