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6 Oct 2020
The gravitational force exerted by the Sun on the Earth holds the Earth in an orbit around the Sun. Let us assume (that the orbit is perfectly circular. The work done by this gravitational force during a short time interval in which the Earth moves through a displacement in its orbital path is (a) zero (b) positive (c) negative (d) impossible to determine.
The gravitational force exerted by the Sun on the Earth holds the Earth in an orbit around the Sun. Let us assume (that the orbit is perfectly circular. The work done by this gravitational force during a short time interval in which the Earth moves through a displacement in its orbital path is (a) zero (b) positive (c) negative (d) impossible to determine.
KathLv10
9 Dec 2020
