To determine power, it is necessary to know the
1 answer:
Force, distance and time
Explanation:
Power is the rate at which work is being done:
Power =
The quantity force x distance is the work done by a body.
Force is the applied pull or push on a body that causes it change position.
It is important to know the work done and the time taken for the work to be done when considering power.
The unit of power is watt or J/s
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Answer:
Explanation:
Acceleration can be found by dividing the change in velocity by the time.
(<em>v </em>is the final velocity, <em>u</em> is the initial velocity, <em>t </em>is the time).
The velocity increased from 22 m/s to 236 m/s in 5 seconds. Therefore:
Substitute the values into the formula.
Subtract in the numerator.
- 236 m/s-22 m/s=214 m/s
Divide.
The acceleration of the object is <u>42.8 meters per square second.</u>
We have that the expression for the magnitude of the horizontal force F is
From the question we are told
find an expression for the magnitude of the horizontal force f in the figure for which m1 does not slip either up or down along the wedge. all surfaces are friction-less.
Generally the equation for Normal force is mathematically given as
Where
a signifies acceleration
Therefore
Equating above equations
i
Generally the equation for Force on wedge is mathematically given as
Therefore
The expression for the magnitude of the horizontal force F is
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