Hey there!
As per questions,
☆ A feather and a coin fall at the same time, which statement is correct?
Ans:- The feather will meet greater air resistance
☆ What is the weight of a 5-kilogram baby in Newton (N)?
Ans:- 49 N
Steps - As 1 kg = 9.8 N, so 5kg baby = 5×9.8 => 49 N
☆ The force that Earth exerts on any object is
Ans:- attraction
☆ Two objects move toward each other because of gravitational attraction. As the objects get closer and closer, the force between them
Ans:- increases
☆ Suppose the gravitational force between two masses is 10 N. If the distance between the masses is cut in half, what is the force between the masses?
Ans:- 40N
Steps- Gravitational force is 10N
Distance is cut in half
Now using the formula,
[tex]F = G \frac{m^{1}m^{2} }{r^{2} } [/tex]
As you see the distance between the masses is the denominator squared.
This means that if we reduce the distance by half, then the force will increase by a multiple of [tex] {2}^{2} = 4[/tex].
[tex]F = 4 \times 10N\\ = > F = 40N[/tex]
~ Benjemin360
