Answer:
C. 22N
Explanation: Note that we are considering a uniform beam XY which implies that it will be evenly divided. That is the weight will be in between.
One of the laws of equilibrium states that the sum forces across the clockwise moment = sum of forces across the anticlockwise moment
Hence from the diagram we have
(8×50)+(4×10) = 20 × X
400+40 = 20X
440 = 20X
X = 440/20
X = 22N
Hence the answer is option C which is 22N
Answer:
Option c) mass
Explanation:
With the increase in energy in energy of an object there will be an increase in its mass.
Also from Einstein's mass-energy equivalence,
where
m = mass of the object
c = speed of the object (usually speed of light or close to it)
which states that energy and mass are inter convertible.
From which it can be concluded that if an object acquires additional energy, it also acquires additional mass.
Answer:
the initial kinetic energy of the basket ball is 4.8 J
Explanation:
The computation of the initial kinetic energy of the basket ball is shown below:
As we know that
Initial kinetic energy is
Hence, the initial kinetic energy of the basket ball is 4.8 J