Question

two bodies AandB have masses in the ratio 5:1 and the kinetic energies are i the ratio 125:9 find th eratio of their velocities

Answer 1

Answer:

Explanation:

We know that KE= 1/2mv^2

m1:m2 = 5:1

KE1:KE2 = 125:9

v1:v2 = ?

KE1/KE2 = m1v1^2/m2v2^2

v1^2/v2^2 = 125*1/5*9

Answer - v1/v2 = 5/3

Answer 2

Answer:

HOPE IT HELPS .MARK AS AN BRAINLIEST..

Explanation:

LET VELOCITIES OF A AND B BE V[A]  AND  V[B].

mass of A /mass of B  =  5/1

kinetic energy of A /kinetic energy of B  = 125/9

1/2  ×  [mass of A ]  × {V[A]}^2                       125

---------------------------------------------     =    --------------------

1/2 × [mass of B ]  × {V[B]}^2                             9

5   {V[A]}^2                 125

-----------------      =       ----------

   {V[B]}^2                        9

{V[A]}^2                       25

---------------  =          -----------

{V[B]}^2                         9

TAKING ROOT,

THEREFORE,

V[A]                5

---------    =    -------

V[B]                  3