Question

Two particle of masses m and 4m have linear
momenta in the ratio of 2:1. What is the ratio of
their kinetic energies?​

Answer 1

let linear momentum of m is 2x

and linear momentum of 4m is x

m×v = 2x (1)

4m ×v' = x. (2)

(1) ÷ (2)

v/4v' = 2 =⟩ v/v' = 8

Kinetic energy = 1/2 × mv²

= (m/4m)×(v/v')²

= 1/4 × (8)²

= 64/4 = 18

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Answer 2

Answer:

आपल्या घरांमध्ये पाणी पुरवठा योजना सुरू केली होती व ती म्हणजे त्या त्या वेळी ते बोलत होते की नाही ते माहीत नाही पण मला वाटते हे सर्व काही आलबेल होते...