Right before it breaks of, because all the other options are examples of Kinetic energy while the A. answer is the only one describing potential energy.
Answer:
The answer is a sum so 10+5 equals 15
Explanation:
The statement indicating that 'Gravitation always does negative work' is FALSE.
<h3>What is Gravitation?</h3>
Gravitation is a fundamental physical force that makes objects attract each other in the Universe.
This force (Gravitation) is required to maintain both constant positions and movement of objects.
In conclusion, the statement indicating that 'Gravitation always does negative work' is FALSE.
Learn more about Gravitation here:
brainly.com/question/557206
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Answer:
The velocity of the block is 231650.8 ft/s
Explanation:
Knowing
W = 10 lb
v0 = u = 4 ft/s
F = 8 lb
ms = 0.2
Applying the newton second law
ΣFy = 0
N - W = 0 --> N = W = 10 lb
ΣFx = m
F - ms N = ma
- 0.2(10) =
a =
Using Kinematics
a = dv/dt
= =
v - 4 = 3.22
when t = 30
v = 231650.8 ft/s