Question

32)If 20000 J of work is done in pumping water up to height 12 m. The amount of
water pumped is (g = 9.8 m/s)
[ ]
1) 170 kg
2) 150 kg
3) 200 kg
4) 250 kg

33) A car of mass 1500 kg. If the speed of car is changed from 30 km/h to 60 km/h,
then the work done by car is
[ ]
1) 1 x 10 J
2) 1.56 x 10ʻJ
3) 2 x 10 J
4) 2.5 x 10'J

34) The kinetic energy of an object is K. If its velocity is doubled than its kinetic
[ ]
1) K
2) 2K
3)K/2
4) 4K

35) Two bodies of mass 1 kg and 4 kg possess equal momentum. The ratio of their
Κ.Ε
[ ]
1) 4:1
2) 1:4
3) 2:1
4) 1:2​

Answer 1

Answer:

33

Explanation:

33 is right Answer