Question

what Will be the angular momentum?????

Answer 1

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ANGULAR MOMENTUM IS GIVEN BY THE EQUATION :- L=r × P ---------1

NEW KINETIC ENERGY = K'= 2 K

NEW MOMENTUM =P' = ?

RELATION BETWEEN KINETIC ENERGY AND MOMENTUM IS :-

KINETIC ENERGY =P^2 ÷ 2m

SO IF KINETIC ENERGY IS DOUBLED THEN MOMENTUM WILL BECOME FOUR TIMES AS KINETIC ENERGY IS EQUAL TO SQUARE OF MOMENTUM.

2 K. E' = 2^2 P

2K.E'=4 P

PUT IN EQUATION 1

L=r × 4P

L'=4 (r × P)

AS r × P= L

SO

L'= 4 L

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