Question

The power of the crane was 68600w Caculate the time taken for the crane to do 3430000 J of work Give the unit

Answer 1

Answer:

$T \approx 5s$

Explanation:

From the question we are told that:

Power $P=686600w Js^{-1}$

Work $W=3430000 J$

Generally the equation for Time t is mathematically given by

$T=\frac{Work}{Power}$

$T=\frac{W}{P}$

Therefore

$T=\frac{3430000 }{686600}$

$T=4.996$

$T \approx 5 s$