Q2; block of mass m = 2.50 kg is pushed d = 2.50 m along a frictionless horizontal table by a constant applied force of magnitude F = 13.0 N directed at an angle θ = 25.0° below the horizontal as shown in the figure below. A block labeled m is on a horizontal surface. An arrow labeled vector F points downward and to the right at an angle θ above the horizontal, and acts upon the upper left corner of the block. A faded image of the block is a distance d to the right of the block. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by the table. Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. J (c) Determine the work done by the force of gravity. J
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.
Q2; block of mass
is pushed
along a frictionless horizontal table by a constant applied force of magnitude
directed at an angle
below the horizontal as shown in the figure below.
J
(b) Determine the work done by the normal force exerted by the table.
Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. J
(c) Determine the work done by the force of gravity.
J
(d) Determine the work done by the net force on the block.
J
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