While rowing across the lake during a race, John does 3,960 J of work on the oars in 60.0 s. What is his power output in watts?

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Answer 1 · 2018-04-13T13:10:09

#66 W#

Formula of Power:

#color(blue)((Wo rk)/(time taken))#

Given: Work = #3960 J# and time taken = #60.0s#

Using the formula:

#color(blue)((Wo rk)/(time taken))#

= #(3960 J)/(60.0 s)#

= #66 W#

Answer 2 · 2018-04-13T13:41:31

#66# watts

Power is calculated through the equation,

#P=W/t#

#W# is the work done in joules

#t# is the time in seconds

So, we got:

#P=(3960 \ "J")/(60 \ "s")#

#=66 \ "W"#