Please show complete, organized and correct work for each question. Any question-even multiple choice-without complete and clear work will not earn a passing grade. Put all work you want graded on this paper. Erase (or cross out) any work that you don't want graded. You should use scratch paper to organize your thoughts, but do not turn it in. A rubber ball and a clay ball have equal mass and are dropped onto a digital scale. The rubber ball bounces back to nearly the same height. The clay ball sticks to the scale when it hits. For the (single) interaction with the scale... a. What is the ratio of the change of the rubber ball's momentum to the change of the clay ball's momentum? Aprubber Apetay b. What is the ratio of the impulse imparted to the rubber ball to the impulse imparted to the clay ball? impulseubber impulse clay c. Which of the following graphs could represent, to the same scale, the force exerted by the scale on each ball as a function of time? Select an answer for the rubber ball and an answer for the clay ball. F (N) F (N) F (N) A) F (N) 1 (s) I (s) 1 (s) F (N) rubber ball: clay ball: 1 (s) 1 (s) B) D)
Kinematics
A machine is a device that accepts energy in some available form and utilizes it to do a type of work. Energy, work, or power has to be transferred from one mechanical part to another to run a machine. While the transfer of energy between two machine parts, those two parts experience a relative motion with each other. Studying such relative motions is termed kinematics.
Kinetic Energy and Work-Energy Theorem
In physics, work is the product of the net force in direction of the displacement and the magnitude of this displacement or it can also be defined as the energy transfer of an object when it is moved for a distance due to the forces acting on it in the direction of displacement and perpendicular to the displacement which is called the normal force. Energy is the capacity of any object doing work. The SI unit of work is joule and energy is Joule. This principle follows the second law of Newton's law of motion where the net force causes the acceleration of an object. The force of gravity which is downward force and the normal force acting on an object which is perpendicular to the object are equal in magnitude but opposite to the direction, so while determining the net force, these two components cancel out. The net force is the horizontal component of the force and in our explanation, we consider everything as frictionless surface since friction should also be calculated while called the work-energy component of the object. The two most basics of energy classification are potential energy and kinetic energy. There are various kinds of kinetic energy like chemical, mechanical, thermal, nuclear, electrical, radiant energy, and so on. The work is done when there is a change in energy and it mainly depends on the application of force and movement of the object. Let us say how much work is needed to lift a 5kg ball 5m high. Work is mathematically represented as Force ×Displacement. So it will be 5kg times the gravitational constant on earth and the distance moved by the object. Wnet=Fnet times Displacement.
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