The earth revolves about the sun in an elliptical orbit with mean radius 9.3×107m in a period of 1 year. Assuming that there are no outside influences
Earth’s kinetic energy remains constant
Earth’s angular momentum remains constant
Earth’s potential energy remains constant
all of the above
As we learnt in
Lift accelerating down with 'a' -
V= variable
- wherein
Apparent weight Actual weight
Force exerted by the block A on the block B is
Option 1)
Earth’s kinetic energy remains constant
This option is incorrect.
Option 2)
Earth’s angular momentum remains constant
This option is correct.
Option 3)
Earth’s potential energy remains constant
This option is incorrect.
Option 4)
all of the above
This option is incorrect.