Fill in the blanks with suitable prepositions a long day 1. Maya was tired work 2. You will see the picture page 45 9. Ritu worked hard completing her painting. She succeede selling it two thousand rupees. 10. The thieves were taken the police the court 11. Bharati makes beautiful paintings the computer a mouse 3. Have you received an invitation Karim's wedding? 4 Irely my parents the right advice 5. My aunt taught me how to eat a knife and fork 6. Don't stand the wall , you will get dirt 7. He is short pocket money 8. Are you happy the result? 12. I will surely contact you e-mail. 13. The cat jumped the rat 14. Ravi and I have a lot of things in common music, your dress the 15 Suman arrived late airport.
Answers
Answer:
(a)Work is done because the displacement of swimmer takes place and a force is applied.
(b)Donkey is not doing any work in carrying the load as weight (acting vertically downward) and displacement (acting horizontal) are perpendicular to each other. But, it does work against friction between its hoofs and the ground.
(c) Work is done because the displacement of water takes place and a force is applied by the wind mill. Wind mill does a work against gravity.
(d) No work is done, because no displacement takes place.
(e) Work is done because the displacement of train takes place and a force is applied by the engine.
(f) No work is done because displacement does net take place.
(g) Work ts done because the displacement of sailboat takes place and a force is applied by the wind.