Question

1. Calculate the size of the gravitational pull of a sphere of mass 10 kg on a mass 2.0 kg. When their

centres are 200 mm apart. What is the force of the 2.0 kg mass on the 10 kg mass?

Please answer with an explanation if you can!!!

Answer 1

Step-by-step explanation:

Let a be the sphere of mass 10 kg and b be the sphere of mass 20 kg. According to Newton's universal law of gravitation, the gravitational force of a on b is expressed as:

F

a

b

=

G

m

M

d

2

, where:

G

=

6.67

×

10

−

11

N

m

2

/

k

g

2

is the gravitational constant

m = 2 kg is the mass of a

M = 10 kg is the mass of b

d = 0.2 m is the separation between the two spheres

So:

Fab=GmMd26.67

×

10

−

11

×

2

×

10

0.2

2