Hello, can you please help me with my homework 4. Supposing you were in space in a weightless environment, would it require a force to set anobject in motion?5. Fred spends most Sunday afternoons at rest on the sofa, watching pro football games andconsuming large quantities of food. What effect (if any) does this practice have upon his inertia?Explain.6. Ben Tooclose is being chased through the woods by a bull moose which he was attempting tophotograph. The enormous mass of the bull moose is extremely intimidating. Yet, if Ben makes azigzag pattern through the woods, he will be able to use the large mass of the moose to his ownadvantage. Explain this in terms of inertia and Newton's first law of motion.7. Two bricks are resting on edge of the lab table. Shirley Sheshort stands on her toes and spotsthe two bricks. She acquires an intense desire to know which of the two bricks are mostmassive. Since Shirley is vertically challenged, she is unable to reach high enough and lift thebricks; she can however reach high enough to give the bricks a push. Discuss how the process ofpushing the bricks will allow Shirley to determine which of the two bricks is most massive. Whatdifference will Shirley observe and how can this observation lead to the necessary conclusion?8. Whiplash sometimes results from an automobile accident when the victim's car is struckviolently from the rear. Explain why the head of the victim seems to be thrown backward in thissituation. Is it really? Do headrests really help prevent whiplash injuries? Why? NEWTON'S LESSON 1 HOMEWORKFree-body diagrams for four situations are shown below. For each situation, determine the netforce acting upon the object.Situation AFfrict 5 N= 3 NFnormapp = 5 HFgray = 3 NSituation CForm= 20 NFgray= 20 NSituation BFfrict 5 N= 3 NFnormFgrav= 3 NSituation DFair 40 NFgray = 25 N1. Imagine a place in the cosmos far from all gravitational and frictional influences. Suppose thatyou visit that place (just suppose) and throw a rock. The rock will do what and why?2. A 2-kg object is moving horizontally with a speed of 4 m/s. How much net force is required tokeep the object moving at this speed and in this direction?3. Mac and Tosh are arguing in the cafeteria. Mac says that if he flings the Jell-O with a greaterspeed it will have a greater inertia. Tosh argues that inertia does not depend upon speed, butrather upon mass. Who do you agree with? Explain why.

Name: Hello, can you please help me with my homework 4. Supposing you were i
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Description: Hello, can you please help me with my homework 4. Supposing you were in space in a weightless environment, would it require a force to set anobject in motion?5. Fred spends most Sunday afternoons at rest on the sofa, watching pro football games andco

For Situation A, Net force = (3+3+5+5) N = 16 N For Situation B, Net force = (3+5+3) N = 11 N For situation C, Net force = (20+20) N = 40 N For situation D, Net force = (40+25) N = 65 N1. Given that, a place in a cosmos where gravitational and frictional influence is zero. As there is no gravitational attraction and frictional force so, if we throw a rock, it continuously moves with same speed and left from hand forever because no force is acting on the rock. As per Newton's 1st law, object continue to be in the state of motion until an external force is applied. so, the rock will continue in motion in the same direction at constant speed. 2. Newton's 2nd law implies that the net force on an object is given as the product of its mass and its acceleration. The net force and the net acceleration both are vector quantities and they are required to be in the same direction. Given that, the mass of the object m=2kg and the speed u = 4 m/s. According to the law of inertia, an object continues to be in its state of motion, unless and until an external force acts on it. hence, if an object is moving with constant velocity and no external force such as frictional force, then the objects continue to move with the same velocity in the same direction. Thus, the net force required is Zero.3. Inertia is defined as tendency of an object to resist or oppose change in motion due to force acting on it. Inertia is an intensive property of an object and hence it depends solely upon mass. The more mass the more inertia. Inertia does not depend on speed, it depends only on mass. So, Tosh is correct. 4. Absolutely yes. Even in space objects have mass. And if they have mass, they have inertia. That is an object in space resists changes in its state of motion. A force must be applied to set a stationary object in motion. 5. Fred's inertia will increase. Fred will increase his mass if he makes a habit of this. and if his mass increases, then the inertia increases.6. The large mass of the bull moose means that the bull moose has a large inertia and larger momentum. Because of the larger momentum, the bull has to apply a larger force against its momentum in order to change direction and run in zig-zag pattern. Thus, Ben having lighter momentum can easily change direction and run in zig-zag pattern than the bull, as Newton's first law says that a body tends to be in the state of rest or uniform motion until and unless an external force acts on it. 7. The bricks, like any object, possess inertia. That is, the bricks will resist changes in their state of motion. If Shirley gives them a push, then the bricks will offer resistance to this push. The one with most mass will be one with most inertia. This will be the brick which offers the most resistance. This very method of detecting mass of an object can be used on earth as well as in locations where gravitational forces are negligible for bricks. 8. Whiplash is a common injury that occurs when the neck muscles are strained as a result of abrupt forward and backward movements of the head and neck. Application of Newton's 3rd law when the car is violently pushed forward, someone suffers from whiplash. The victim's back, which is resting against the seat, goes forward with the vehicle. The head, on the other hand, is not directly being forced, which causes it to trail behind. In the end, the neck muscles pull the head forward and result in whiplash. To prevent this, use the headrest in your automobile. In actuality, the victim's torso is propelled forward while their head tends to stay at rest.