The gravitational attraction between two objects with masses m₁ and m₂, separated by distance, is F = Gm₁m₂/r², where G is the gravitational constant. W = - -(Gmym₂ Submit Previous Answers ✓ Correct Part B Gm1m₂ 22 If one mass is much greater than the other, the larger mass stays essentially at rest while the smaller mass moves toward it. Suppose a 1.5x 1013 kg comet is passing the orbit of Mars, heading straight for the 1.99 x 1030 kg sun at a speed of 2.5 x 104 m/s. What will its speed be when it crosses the orbit of Mercury? The orbit of Mars is 2.28x 108 km, the orbit of Mercury is 5.79x 107 km, and G = 6.67x10-11 N·m²/kg² Express your answer with the appropriate units. ► View Available Hint(s) μA v=Value Submit Previous Answers Units ? Units input for part B Review | Constants X Incorrect; Try Again; 3 attempts remaining
Gravitational force
In nature, every object is attracted by every other object. This phenomenon is called gravity. The force associated with gravity is called gravitational force. The gravitational force is the weakest force that exists in nature. The gravitational force is always attractive.
Acceleration Due to Gravity
In fundamental physics, gravity or gravitational force is the universal attractive force acting between all the matters that exist or exhibit. It is the weakest known force. Therefore no internal changes in an object occurs due to this force. On the other hand, it has control over the trajectories of bodies in the solar system and in the universe due to its vast scope and universal action. The free fall of objects on Earth and the motions of celestial bodies, according to Newton, are both determined by the same force. It was Newton who put forward that the moon is held by a strong attractive force exerted by the Earth which makes it revolve in a straight line. He was sure that this force is similar to the downward force which Earth exerts on all the objects on it.
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