Gravitational force is reduced by _____ between objects.
2 answers:
Answer : The correct option is, (B) the square of the distance
Explanation :
Gravitational force : It is defined as the gravitational force is directly proportional to the product of the masses of the two object and an inversely proportional to the square of the distance between the two object.
The gravitational force (F) between the two object masses (M) and (m) and the distance between the two object (r) is given by the equation,
where,
G = gravitational constant
When the distance between the two object doubles then the gravitational force is reduced by one fourth (1/4)th between objects.
When the distance between the two object triples then the gravitational force is reduced by one ninth (1/9)th between objects.
Gravitational force is inversely proportional to the square of the distance of two object.
Therefore, the gravitational force is reduced by the square of the distance between objects.
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Answer: 5 units
Let's begin by stating clear that movement is the change of position of a body at a certain time. So, during this movement, the body will have a trajectory and a displacement, being both different:
The trajectory is the path followed by the body (is a scalar magnitude).
The <u>displacement</u> is the distance in a straight line between the initial and final position (is a vector magnitude).
According to this, in the description of the object (figure attached) placed at 0 on a number line and moving some units to the left and some oter units to the right, we are talking about the path followed by the object, hence its trajectory. So, 13 units is its trajectory.
But, if we talk about displacement, we have to draw a straight line between the initial position of the object (point 0) to its final position (point 5).
Now, being this an unidimensional problem, the displacement vector for this object is 5 units.
