two objects having equal masses are moving with uniform velocities of 2 m/s anf 6m/s . calculate rhe ratio of their kinetic energies...
Answers
Answered by
6
hope it helps you...............
Attachments:
Answered by
2
ANSWER
.................
➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️
m1 = m,
m2 = m,
v1 = 2v,
v2 = 3v,
EI/E2 =
We know that E = 1/2 mv^2
Total energy = KE + PE
Now, velocity after travelling distance h/2 is
v^2 - u^2 = 2g(h/2)
v^2 = gh
.......
KE = 1/2 mv^2 = 1/2 mgh And
PE = 1/2 mgh
= 1 : 9
total energy
= 1/2 mgh + 1/2 mgh = mgh
.................
➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️ ➡️
m1 = m,
m2 = m,
v1 = 2v,
v2 = 3v,
EI/E2 =
We know that E = 1/2 mv^2
Total energy = KE + PE
Now, velocity after travelling distance h/2 is
v^2 - u^2 = 2g(h/2)
v^2 = gh
.......
KE = 1/2 mv^2 = 1/2 mgh And
PE = 1/2 mgh
= 1 : 9
total energy
= 1/2 mgh + 1/2 mgh = mgh
Similar questions