Answered

12. A runner at the start of a race generates 250 W of power as he accelerates to 5 m/s. If the runner has a mass of
60 kg, how long did it take him to reach that speed?

Answer :

1/2 m/s2
30 Na




I hope this helps!
okpalawalter8

We have that  the Time  it took him to reach that speed is

t=1.2sec

From the question we are told

A runner at the start of a race generates 250 W of power as he accelerates to 5 m/s. If the runner has a mass of  60 kg, how long did it take him to reach that speed?

Generally the equation for the   is mathematically given as

[tex]P=W/t[/tex]

Therefore

[tex]W=Pt\\\\W=250*t[/tex]

Where

[tex]W=f*d\\\\5*60=250*t\\\\t=\frac{5*60}{250}]\\\\t=1.2sec[/tex]

Therefore

Time  it took him to reach that speed is

t=1.2sec

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