Question

calculate the gravitational attraction of two cars 5m apart if the masses of the car are 1000kg and 1200kg respectively​

Answer 1

Answer:

Given : m

1

=80 kg m

2

=1200 kg d=10 m

Force of gravitation F=

d

2

Gm

1

m

2

Or F=

10

2

6.67×10

−11

×80×1200

=6.4×10

−8

N

Answer 2

GIVEN DATA :

• Mass of first car ( m ) = 1000 kg.

• Mass of second car ( m' ) = 1200 kg.

• The distance between first and second car ( r ) = 5 m.

TO FIND : Gravitatinal attraction between two cars.

SOLUTION :

Here, we need to convert, distance between first and second car into kilometre.

→ 5 m = {5/1000 } km

→ 5 m = 5 * 10^( -3 ) km

Now, according to question, we need to find the Gravitatinal attraction between two cars.

Now, we use formula

→ F = {G * m * m' }/r²

where,

• F = Gravitational force between two particles.
• G = Gravitational constant { 6.673 * 10^( - 11 ) N • m²/kg².
• m = Mass of first car
• m' = Mass of second car
• r = The distance between first and second car.

Now, by formula,

→ F = {G * m * m'} / r²

→ F = {6.673 * 10^( - 11 ) * 1000 * 1200} / {5 * 10^( -3 )}²

→ F = {6.673 * 10^( - 11 ) * 12 * 10^( 5 )} / {25 * 10^( - 6 ) }

→ F = {80.076 * 10^( - 6 )} / {25 * 10^( - 6 )}

→ F = 3.20304 N

ANSWER : Hence, gravitational attraction between two cars is 3.20304 N.

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