Gravitation
𝑟𝑖
𝑚1 𝑚2
𝑃 𝑚
𝑑
𝑚 𝑚 𝑚
𝐸𝑔 𝑃 𝐴 𝐵 𝐶
𝑑 𝑑
𝑀
𝑟Ԧ
SUMIT SIR & CHATAP SIR
, Basic Forces in Nature
Basic forces are classified into four categories
a) Gravitational Force
b) Electromagnetic Force
c) Strong nuclear Force
d) Weak nuclear Force
Relative strengths of basic forces between protons :
Basic force Range Relative strength
Gravitaional Long range (upto infinity) 1
Weak nuclear Short range ( ≪ 1fm ) 1031
Electromagnetio Long range (upto infinity) 1036
Strong nuclear Short range ( 1 fm ) 1038
SUMIT SIR & CHATAP SIR
, Newton’s Law of Gravitation
‘Every object in the universe attracts every other object with a force that is
directly proportional to the product of their masses and inversely proportional
to the square of the distance between them.’
𝐹 ∝ 𝑚1𝑚2
𝐹 ∝ 1/𝑟2
𝐴 𝐵 𝐺𝑚1 𝑚2
𝐹 =
𝑟2
𝑟
𝐹12 𝐹21
Here, 𝐺 is the Universal
𝑚1 𝑚2 gravitational constant.
SUMIT SIR & CHATAP SIR
𝑟𝑖
𝑚1 𝑚2
𝑃 𝑚
𝑑
𝑚 𝑚 𝑚
𝐸𝑔 𝑃 𝐴 𝐵 𝐶
𝑑 𝑑
𝑀
𝑟Ԧ
SUMIT SIR & CHATAP SIR
, Basic Forces in Nature
Basic forces are classified into four categories
a) Gravitational Force
b) Electromagnetic Force
c) Strong nuclear Force
d) Weak nuclear Force
Relative strengths of basic forces between protons :
Basic force Range Relative strength
Gravitaional Long range (upto infinity) 1
Weak nuclear Short range ( ≪ 1fm ) 1031
Electromagnetio Long range (upto infinity) 1036
Strong nuclear Short range ( 1 fm ) 1038
SUMIT SIR & CHATAP SIR
, Newton’s Law of Gravitation
‘Every object in the universe attracts every other object with a force that is
directly proportional to the product of their masses and inversely proportional
to the square of the distance between them.’
𝐹 ∝ 𝑚1𝑚2
𝐹 ∝ 1/𝑟2
𝐴 𝐵 𝐺𝑚1 𝑚2
𝐹 =
𝑟2
𝑟
𝐹12 𝐹21
Here, 𝐺 is the Universal
𝑚1 𝑚2 gravitational constant.
SUMIT SIR & CHATAP SIR
