In which of the following situations is more work done?
Carrying a bag for 3 km
Carrying a bag for 10 km
Carrying a bag for 9 km
Carrying a bag for 6 km
The work done is directly proportional to the displacement. Hence, the work done will be maximum when a bag is carried for 10 km.
A person carrying a bag of total mass 25 kg climbs up to height of 5 m in 30 seconds slowly. The power delivered for carrying the bag is-
Q61. Mahima’s bag can carry no more than ten books. Mahima must carry at least one book each of management, mathematics, physics and fiction. Also, for every management book Mahima carry she must carry two or more fiction books, and for every mathematics book Mahima carry, she must carry two or more physics books. Mahima earn 4, 3, 2 and 1 points for each management, mathematics, physics and fiction book, respectively, she carry in her bag. Mahima want to maximize the points she can earn by carrying the most appropriate combination of books in her bag. The maximum points that Mahima can earn are-