What is power?

2 answers:

4 0

We can define power as the rate of doing work, it is the work done in unit time. The SI unit of power is Watt (W) which is joules per second (J/s). Sometimes the power of motor vehicles and other machines are given in terms of Horsepower (hp) which is approximately equal to 745.7 watts.

Power is the rate at which a force is applied to an object for example.current wire

Snowcat [4.5K]3 years ago

4 0

Answer:

Power is the rate at which a force is applied to an objec

Explanation:

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An unnamed professor is walking to class when an office chair (travelling in the same direction) collides with them. The profess

ololo11 [35]

Answer: 1.96 m/s

Explanation:

Given

Mass of Professor $m_1=113\ kg$

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velocity of chair $u_2=6.5\ m/s$

Suppose after the collision, v is the common velocity

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$\Rightarrow m_1u_1+m_2u_2=(m_1+m_2)v\\\\\Rightarrow v=\dfrac{113\times 1.56+10\times 6.5}{113+10}=\dfrac{241.28}{123}\\\\\Rightarrow v=1.96\ m/s$

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