Question

un
15. A 2kg body and a 3 kg body have equal
v momentum. If the kinetic energy of 3kg body is
10 joule, the kinetic energy of2 kg body will be
in joule.
1)6.66 2)15 3)22.5 4145
16
Two bodice.​

Answer 1

Answer:

M1V1=M2V2

Let m1=2 kg

and m2= 3kg

therefore, 2v1=3v2

now, 1/2 x m2 v2^2= 10 J

then, v2=√20/3

then, v1= 3/2 x √20/3

v1^2= 9/4 x 20/3=15 ..............(i)

kinetic energy of m1 is 1/2 x m1 v1^2

i.e. 1/2 x 2 x 15= 15 J

Answer 2

Answer:

Explanation:

15