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Use energy conservation, since no energy is lost it must be constant.
E = 0.5mv² + mgh
At release the velocity v = 0 and the height is h.
E = 0 + mgh
At impact the height h = 0 and the velocity is v.
E = 0.5mv² + 0
Since the energy E is conserved:
0.5mv² = mgh
the mass m cancels and the equation becomes:
0.5v² = gh
h = 0.5v²/g
when g = 9.81 and v = 22:
h = 24,66
It is an intensive property as it varies with time and position within the system.
Answer:
speed = wavelength * frequency
Explanation:
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Explanation:
A race car's main target is how to have rapid acceleration by scaling its speed. Acceleration of car is mostly a product of the force of the car engine.
According the newtons second law"The acceleration of body in motion depends on two main variables, the net force acting on it and the mass".
It is also written mathematically as:
F = m x a
F is the net force produced by the engine
m is the mass of the car
a is the acceleration.
Re-writing the equation:
Now Acceleration =
We can see that acceleration is directly related to increasing force but inversely proportional to the mass.
A race car needs to have a good acceleration so as to attain top speed.
The more the mass, the less the acceleration.
This is why extra weight like the seats are expunged.
learn more:
Newton's laws brainly.com/question/11411375
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