Question

If the unit of power is kilo erg/minute the unit of force is 1000dyne and the unit of length is 5/3 cm then the unit of time is ( in second)

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Secondary School Science 5 points

If the unit of power is million erg/minute ,the unit of force is 1000 dyne and the unit of length is 5/3cm then yhe unit of time is

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albelicat Ambitious

Expression for the power,P=\frac{Fl}{t}

We can also write, t=\frac{Fl}{P}

Here, F is the force, l is length and t is the time.

Given, P= million erg/minute= 10^{6} erg/minute,F=1000 dyne and l =\frac{5}{3} cm.

Therefore, after substituting these values in above relation we get

t=\frac{1000}{10^{6} } \times\frac{5}{3} \times60

t= \frac{30}{300} =\frac{1}{10} s

Thus, the unit of times is \frac{1}{10} s