Which of the two does more work?

Which of the two does more work?

Ans: – As we know that work(W)= force × displacement;

And the force= mass×acceleration.

So, the weight of both as same then kamya will works more as displacement is more.

(ii) Which of the two spends more power?

As: – As work of Kamya is more than Suriya so kamya will spends more power.

 Express 1.5 H.P. in SI Unit of power.

Ans: – As we know, 1HP=746 watt.

so, 1.5 HP= 1.5 × 746= 1119 watt.

One cricket ball and One plastic ball are dropped from the same height. Which will reach the ground with(a) more energy, (b) less power?

Ans: – We all know that the energy is dependent on the mass of the object so the cricket ball which has the more weight will have more energy. The ball made up of plastic has law amount of mass compared to cricket ball so the plastic ball has less power.

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