Abox of mass 1 kg is hung from a spring scale. the reading on the spring scale is approximately 10n. what would be the reading on the spring scale if a box of mass 5 kg is hung from it? (assume acceleration due to gravity to be 10 m/s2.)
a) 5 n
b) 10 n
c) 50 n
d) 500 n

Explanation:

It is given that,

When mass is, m₁ = 1 kg

The reading on the spring scale, F = 10 N

If the mass is, m₂ = 5 kg

We need to find the reading on the spring scale. The force of gravity is acting on the box which is given by :  

F = 50 N

So, the reading on the spring scale is 50 N. Hence, this is the required solution.                            

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

the rearrangement of particles in a physical change. hope this