2.0 x 106m3
2.5 x 10-6m3
3.0 x10-6m3
2.0 x 10-6m3
Weight of liquid displaced = Upthrust
= (0.040 - 0.024)N
= 0.016N = 0.016/10 = 1.6 X 10-3kg
Volume of the object = Volume of liquid displaced
=
| Mass of liquid | = 1.6 x 10-1kg |
| density of liquid | 800kgm-2 |
= 2.0 x 106m3 (A)
= FV
V = velocity
Power P = FV = (200N (20m/s)
= 4000W (C)
momentum is proportional to force action
action is equal to reaction but in the opposite direction
The acceleration of an object as produced by a force is inversely proportional to the mass of the object
force is proportional to rate of change of momentum
The second law of motion states that a body which is subjected to a net external force (F) acquires acceleration which is directly proportional to the force and inversely proportional to the mass of the body i.e. F = ma
(C)
57,708J
42,708J
35,208J
50,208J
Since I calorie = 4.184J
12,000 calorie = (4.184 x 12,000)J = 50.208J
heat supplied = Work done
() + U (internal energy)
50,208 = 7500J + 5
5 = (50.208 7500)J
= 42708J (B)
(A)
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