Force meter

We put the statuette on the force meter. The force meter showed a value 25 N. Then we placed the statuette on the force meter completely immersed in the water. The force meter showed a value 17 N. What is the volume of the statuette?

Result

V =  0.8 l

Solution:

$F_{ 1 } = 25 \ N \ \\ F_{ 2 } = 17 \ N \ \\ F_{ 2 } = F_{ 1 } - mg \ \\ F_{ 2 } = F_{ 1 } - Vhg \ \\ g = 10 \ m/s^2 \ \\ h = 1 \ kg/l \ \\ V = (F_{ 1 }-F_{ 2 })/(h \cdot \ g) = (25-17)/(1 \cdot \ 10) = \dfrac{ 4 }{ 5 } = 0.8 = 0.8 \ \text{ l }$

Try another example

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:

Be the first to comment!

Next similar math problems:

1. Shop stores
   Workers untied fruit to stores. In the first quarter shipments, in the second fifth shipment, in the third two-fifths of the rest and in the fourth 231 kilograms. How many fruits were together?
2. Water in vegetables
   Tomatoes in the store contain 99% water. After being transported to the shop, they were slightly dried and contained only 98% of water. How many kgs of tomatoes are in the store if there were 300 kg in stock?`
3. Heating plant
   Workers dump imported coke at heating plant. On the first day used half of the amount, the second day three quarters the rest and on the third day left 120 tons. How much coke they dump at heating plant?
4. Driving school
   Driving final exam involving 10 attendants. The exam consists of three parts. 2 fails at test (quiz) and 6 students fails on car skills test on playground (slalom between the cone). The practical part of the test - driving in town in the real traffic - al
5. Iron cast
   What is the weight of cast iron with volume 3575 cubic centimeters. The density of the cast iron is 7600 kg/m3
6. Gold horseshoe
   Calculate the volume of a gold horseshoe that weighs 750g.
7. Freight train
   The train carries 525 tons of limestone in 29 wagons. Wagons are 15 tonne and 20 tons. How many is 15 ton and how many is 20 ton wagons?
8. Sportsman
   A trained athlete is able to exhale after a deep breath still 500 ml of air. At normal inhalation and exhalation is breathing 500 ml of air. Within one minute, one breath and exhaled 14 times. What part of breathing air per day is one exhalation?
9. Magic number
   The number 135 split to two addends so that one addend was 30 greater than 2/5 the addend.
10. Cut trees
    There are 1,200 trees in the grove, of which 55 percent are deciduous, the remaining coniferous. Workers cut down 35 percent a) trees, b) deciduous trees, c) coniferous trees. How many trees now have this grove?
11. Mushrooms
    For five days, we have collected 410 mushrooms. Interestingly every day we have collected 10 mushrooms more than the preceding day. How many mushrooms we have collected during 4th day?
12. Farm2
    The farm bred turkeys, geese, hens and chickens. Everything is 400. Turkeys and geese a hen are 150. No hen has more than one chicken, but some hens has no chick. Half of them is also a quarter of the chickens. When the turkey subtracting 15, we get 75. Ho
13. Tram
    In the three-part tram went 206 passengers in front of others, 226 after others and in the middle half of all. How many passengers went in tram total?
14. Pages of book
    Lenka calculated that if every day to read 16 pages of the book, read a book a day earlier than had read only 14 pages a day. How many pages has this book?
15. Bakery and flour
    The bakery tray for flour was filled to 3/4 volume. After removing 875 kg of flour, it was filled to only 2/5 of the volume. How many tons of flour is in the full tray?
16. Excavator
    The excavator bucket capacity is 0.5 m³. Determine the mass of sand that the excavator picks up. The sand density is 1650 kg/m3.
17. Buttons
    Shirt has 6 buttons, blouse has 4 buttons. All buttons are 176. Shirts and blouses are together 36. How many are the shirts and blouses?