<h2>
Option C is the correct answer.</h2>
Explanation:
Gravitational force is given by
![F=\frac{GMm}{r^2}](https://tex.z-dn.net/?f=F%3D%5Cfrac%7BGMm%7D%7Br%5E2%7D)
G=6.674×10⁻¹¹ m³⋅kg⁻¹⋅s⁻²
M = Mass of object 1
m = mass of object 2
r = Distance between objects.
Here only variable is r value.
In case 1
![100=\frac{GMm}{(1000+500)^2}\\\\GMm=100\times 1500^2](https://tex.z-dn.net/?f=100%3D%5Cfrac%7BGMm%7D%7B%281000%2B500%29%5E2%7D%5C%5C%5C%5CGMm%3D100%5Ctimes%201500%5E2)
In case 2
![F=\frac{GMm}{(1000+500+500)^2}\\\\F=\frac{GMm}{2000^2}\\\\F=\frac{100\times 1500^2}{2000^2}\\\\F=56.25N](https://tex.z-dn.net/?f=F%3D%5Cfrac%7BGMm%7D%7B%281000%2B500%2B500%29%5E2%7D%5C%5C%5C%5CF%3D%5Cfrac%7BGMm%7D%7B2000%5E2%7D%5C%5C%5C%5CF%3D%5Cfrac%7B100%5Ctimes%201500%5E2%7D%7B2000%5E2%7D%5C%5C%5C%5CF%3D56.25N)
Option C is the correct answer.
Answer:
Explanation:
Spring has a tendency to store energy in them and deform its shape when force is applied on it. Once the applied force is removed it regains its original shape and size.
It is in helical shape and is used in mattress to give structure and support. Spring have elastic nature and follows spring forces, F = k * x
where is the applied force, k is the spring constant and x is the amount of extension.
When a heavier person sits on a mattress, more weight is applied on springs and they form coils, as weight is removed they regains its shape again.
<em>as we know that P=mv .. where m is mass and v is velocity ..this relation shows that momentum has a direct relation with these two quantities .. so when velocity is increased twice
P' = mv
P'=m2v
P' = 2 mv here mv is P so
P'=2P
this shows that momentum will also be doubled by doubling the velocity :)</em>
Answer:
400N
Explanation:
If you have 2 forces (200N) and (200N) pushing an object the same direction in a one dimensional force vectors, the answer would be 400N