Question

a 45 kg mass is kept 25 cm apart from another mass of 50 kg. What will be force of gravitation between them.

Answer 1

Answer:

the answer is

If the mass = 45kg is 25cm

If the mass = 50kg is ?

= 45-25

= 20

= 50-20

= 30cm

Answer 2

GiVeN :-

• m₁ = 45 kg
• m₂ = 50 kg
• r = 25 cm
• G = 6.67 × 10⁻¹¹

To DeTeRmInE :-

The force of gravitation(F) between them.

SoLuTiOn :-

We know,

$\boxed{\sf{\dag\ F=\dfrac{Gm_1m_2}{r^2} }}$

Putting the values :-

$\sf{\hookrightarrow F=\dfrac{6.67\times10^{-11}\times45\times50}{(25)^2} }\\\\\sf{\hookrightarrow F=\dfrac{6.67\times10^{-11}\times45\times50}{25\times25} }\\\\\sf{\hookrightarrow F=\dfrac{6.67\times10^{-11} \times2\times 9}{5} }\\\\\sf{\hookrightarrow F=\dfrac{120.6 \times 10^{-11}}{5} }\\\\\sf{\hookrightarrow F=\dfrac{120.6}{5\times10^1^1} }\\\\\sf{\hookrightarrow F=\dfrac{1206}{5 \times 10^1^2} }\\\\\sf{\hookrightarrow F=241.2 \times 10^{-12}}\\\\\sf{\hookrightarrow F= 2412\times 10^{-13}}$

$\boxed{\boxed{\sf{\hookrightarrow F=24.12 \times 10^{-11}}}}$

Hence, the force of gravitation between them is 24.12 × 10⁻¹¹ N.m².kg⁻².