To solve this problem it is necessary to apply the concepts related to the Gravitational Force, for this purpose it is understood that the gravitational force is described as

Where,
G = Gravitational Universal Force
Mass of each object
To solve this problem it is necessary to divide the gravitational force (x, y) into the required components and then use the tangent to find the angle generated between both components.
Our values are given as,

Applying the previous equation at X-Axis,

Applying the previous equation at Y-Axis,

Therefore the angle can be calculated as,

Then in the measure contrary to the hands of the clock the Force in the particle 3 is in between the positive direction of the X and the negative direction of the Y at 71 ° from the positive x-axis.
C
because 40 j dived by 5 seconds is 8 work
Answer:
first point at which the image focuses will be closer
Explanation:
given data
converging lens = 10 cm
converging lens = 5 cm
lens = 5 cm
to find out
would the first point at which the image focuses be closer or farther
solution
we apply here lens formula that is
1/f = 1/u + 1/v ......................1
so here
v = f × u / u - f
so here for f = 10 cm v will be
v = 10u / u-10 ..........................2
and
for f = 5 cm v will be
v = 5u / u-5 . ........................3
now if we compare equation 2 and 3 we can say that
v for f = 5 cm is greater than v for f = 10 cm
so here first point at which the image focuses will be closer
Because it’s a scientific method so it’s a scientific method