Noor123
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URGENT: rotatonal KE
Two astronauts each having a mass of 54 kg are connected by a 10 m rope of negligible mass. They are isolated in space, orbiting about their centre of mass at speeds of 3.7 m/s. Calculate the rotational energy of the two astronauts.
A. 739.3 J
B. 1478.5 J
C. 29.6 J
D. 317.9 J
E. 369.6 J
Which one is it?
I did:
KE= 1/2 (I + I) omega ^2
and it turned out to be A. Is it correct?
Two astronauts each having a mass of 54 kg are connected by a 10 m rope of negligible mass. They are isolated in space, orbiting about their centre of mass at speeds of 3.7 m/s. Calculate the rotational energy of the two astronauts.
A. 739.3 J
B. 1478.5 J
C. 29.6 J
D. 317.9 J
E. 369.6 J
Which one is it?
I did:
KE= 1/2 (I + I) omega ^2
and it turned out to be A. Is it correct?