In the system shown in the figure below, a horizontal force Facts on an object of mass m₂ = 7.00 kg. The horizontal surface is frictionless. Consider the acceleration of the sliding object as a function of F M₁ (a) For what values of F, (in N) does the object of mass m₁ = 4.60 kg accelerate upward? (Indicate the direction of the force with the sign of your answer. Let the positive x-direction be to the right.) Fx> N (b) For what values of F, (in N) is the tension in the cord zero? (Indicate the direction of the force with the sign of your answer. Let the positive x-direction be to the right.) Fys N -100 (c) Plot the acceleration of the m, object versus F. Include values of F from -100 N to +100 N. a (m/s²) JJJj -100 -50 50 -10 -15 -20 0 -50 a (m/s²) -F₂ -10 -15 -20 50 100 Fx (N) O 0 100 Fx (N) -100 00 -50 a (m/s²) -10 -15 -20 50 Fx (N) 100 -100 O O -50 a (m/s²) st -10 -15 -20 50 100 Fx (N)
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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