Add them together with south being negative. (-350 + 25) to get 325 south
Answer:
1,373.4 N
Explanation:
The mass of the table acts at the centre in addition to the books since that is the centre of gravity of the table.
Mass of books will be 10kg+20kg+30kg=60 kg
Total mass of table and books will be 500kg+60kg=560 kg
This mass is evenly distributed into the four legs hence 560kg/4 legs=140 kg per leg
Force is product of mass and acceleration due to gravity hence F=gm
Taking g as 9.81 m/s2 then
F=140*9.81=1,373.4 N
Therefore, rhe normal force is equivalent to 1,373.4 N
Theories develop over time as new Scientific evidence is discovered.
A law is what happens, a theory trys to explain why it happens. For example there is a gravitational force (law), the theroy of relitivity trys to explain why. it says that gravity is a warpiture in space and time created by all matter in the univerese.
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hope it helped.Answer: