A block of mass m1 is placed on top of a block of mass m2. You push the two blocks so that they move up a vertical wall, with a constant force of magnitude P directed at angle theta. The coefficient of friction between m2 and the wall is u. There is no friction between the blocks and no friction between m1 and the wall. Find the force exerted by the lower block on the upper block. The answer the book gives me is (P(cos(theta)-u*sin(theta)))/(1+(m2/m1)) I get how to get the numerator but am unsure of how the denominator answer was gotten and where gravity went in the equation
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.
A block of mass m1 is placed on top of a block of mass m2. You push the two blocks so that they move up a vertical wall, with a constant force of magnitude P directed at angle theta. The coefficient of friction between m2 and the wall is u. There is no friction between the blocks and no friction between m1 and the wall. Find the force exerted by the lower block on the upper block.
The answer the book gives me is (P(cos(theta)-u*sin(theta)))/(1+(m2/m1))
I get how to get the numerator but am unsure of how the denominator answer was gotten and where gravity went in the equation
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