Slok walks 1.5km carrying a load of 500N in half an hour . Calculate his work and power .

W = 250 kJ and P = 138.88 W

Explanation:

Weight of the load, F = 500 N

She walks a distance, d = 1/5 km = 500 m

Time, t = 1/2 h = 1800 s

We need to find his work done and the power.

Work done,

W = F d

W = 500 N × 500 m

= 250000 J

= 250 kJ

Power = W/t

Putting all the values,

Hence, the work done is 250 kJ and power is 138.88 W.

a factory opens that mass-produces light bulbs.

explanation:

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the answer is d.index