Workshop - Best of Both Worlds_ Combine KG and Vector search for enhanced R...
Module in forces and laws of motion
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2. Write everyday applications which demonstrate the Newton’s Laws of Motion. (Do not use examples cited in this module). Write one situation for each.In this module, you’ve learned that mass and weight are two different things. Weight refers to the force with which gravity pulls upon the object, while Mass refers to how much stuff is present in the object. What is the mass of an object which weighs 98N?Taba Choy wants to diet this summer. Is he aiming to lose mass or to lose weight? Defend your answer.The net force is the vector sum of all the forces which act upon an object. That is to say, the net force is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out. Below, the net force is known for each situation. However, the magnitudes of a few of the individual forces are not known. Analyze each situation individually and determine the magnitude of the unknown forces. Suppose that a car is accelerating at a rate of 5 m/s2. If the net force is doubled and the mass is tripled, then what is the new acceleration of the sled?While driving down the road, a firefly strikes the windshield of a bus and makes a quite obvious mess in front of the face of the driver. The firefly hit the bus and the bus hits the firefly. Which of the two forces is greater: the force on the firefly or the force on the bus? Explain. A 50g tennis ball approaches a racket at 25m/s. if it is in contact with the racket strings for 0.005s, then rebounds at 25m/s, what is the average contact force between the ball and the racket? Hint: Compute first for the acceleration.Many people are familiar with the fact that a rifle recoils when fired. This recoil is the result of action-reaction force pairs. A gunpowder explosion creates hot gases which expand outward allowing the rifle to push forward on the bullet. Consistent with Newton's third law of motion, the bullet pushes backwards upon the rifle. Which has a greater acceleration: the recoiling rifle or the bullet? Why? Write your answers on a clean sheet of paper and submit it to your instructor. Task
3. FalseTrueAnswers may vary. (e.g. braking on a moving car)Answers may vary. (e.g. pushing a book on top of a table)Answers may vary. (e.g. contact force: pushing a door, kicking a ball; field force: attraction or repulsion of magnets)Fnet = 150N to the righta. Third Law or Law of Interactionb. First Law or Law of InertiaAnswers to Self-Check Questions