•• The two masses in the Atwood’s machine are initially at rest at the same height. After they are released, thelarge mass, m2, falls through a height h and hits the floor, andthe small mass, m1, rises through a height h. (a) Find the speedof the masses just before m2 lands, giving your answer in terms ofm1, m2, g, and h. Assume the ropes and pulley have negligible massand that friction can be ignored. (b) Evaluate your answer to part(a) for the case h = 1.2 m, m1 = 3.7 kg, and m2 = 4.1 kg
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.
•• The two masses in the Atwood’s machine
are initially at rest at the same height. After they are released, the
large mass, m2, falls through a height h and hits the floor, and
the small mass, m1, rises through a height h. (a) Find the speed
of the masses just before m2 lands, giving your answer in terms of
m1, m2, g, and h. Assume the ropes and pulley have negligible mass
and that friction can be ignored. (b) Evaluate your answer to part
(a) for the case h = 1.2 m, m1 = 3.7 kg, and m2 = 4.1 kg
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