weight while it is moving. (1) s-You are riding an elevator. The elevator has a built-in scale so that you can measure your s. Draw a free-body diagram that shows all the forces acting on you while the elevator is moving. You can take your body as a point and use arrows for the forces acting on the point. (2) period when the elevator is speeding up and moving upward. (3) shows the reading of your weight during the period when the elevator is speeding up but moving Derive equation that shows the reading of your weight during the Derive equation that 1209 downward. (4) scale when the acceleration of the elevator is 0.1g or 10% of the gravitational acceleration when the What is the increase (or decrease) of your weight, in percentage, on the elevator is moving up and speeding up? (5) 5 Now the elevator is slowing down but still moving up. What is the increase (or decrease) of your weight, in percentage, on the scale when the magnitude of the acceleration of elevator is 0.1g or 10% of the gravitational acceleration. Show your work that leads to your answer. Write down your definitions of all the variables. Explain each step in your work te for your TOTO

weight while it is moving. (1) s-You are riding an elevator. The elevator has a built-in scale so that you can measure your s. Draw a free-body diagram that shows all the forces acting on you while the elevator is moving. You can take your body as a point and use arrows for the forces acting on the point. (2) period when the elevator is speeding up and moving upward. (3) shows the reading of your weight during the period when the elevator is speeding up but moving Derive equation that shows the reading of your weight during the Derive equation that 1209 downward. (4) scale when the acceleration of the elevator is 0.1g or 10% of the gravitational acceleration when the What is the increase (or decrease) of your weight, in percentage, on the elevator is moving up and speeding up? (5) 5 Now the elevator is slowing down but still moving up. What is the increase (or decrease) of your weight, in percentage, on the scale when the magnitude of the acceleration of elevator is 0.1g or 10% of the gravitational acceleration. Show your work that leads to your answer. Write down your definitions of all the variables. Explain each step in your work te for your TOTO

Name: xMemeweight while it is moving. (1)s-You are riding an elevator. The
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Description: xMemeweight while it is moving. (1)s-You are riding an elevator. The elevator has a built-in scale so that you can measure youryou while the elevator is moving. You can take your body as a point and use arrows for the forcess. Draw a free-body diagr

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 27P

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I don't understand why Fs <= Fk. What does the F in (1) and (2) stand for? If it's force applied, wouldn't F = Fs + Fk for box 2, and (F - Fs - Fk) = Fs for box 1? My thinking is that the Force applied on box 2 minus the force of kinetic friction and the force of static friction applied by Box 1 on 2 would equal to the net force. Then the net force of box 2 would cause the same netforce on box 1, if box 1 isn't moving, then it's Fs should be equal to that net force applied on box 1. Therefore Force applied wouldn't be equal to Static Friction Force, and shouldn't it be bigger than the Kinetic Friction Force since it's moving in the direction of Force applied?
** I am confused on this being below the horizontal. Is that making Fy a negative? If so, would that then affect the calculation for normal force? A box (M = 4 kg) is resting on a frictionless horizontal surface. Then there is a 25 Newton force acting onit at an angle 35 degrees below the horizontal.1. Find the horizontal component of the force, Fx - I have Fcostheta so 25cos35 = 20.479 N2. Find the vertical component of the force, Fy - I don't know if this should be 25sin35 or 25sin(-35) 3. Find the normal force acting on the box - Fn = mg - Fy (but I do not understand if this is going to be a positive or negative Fy, obviously negative would make this mg + Fy)4. Find the acceleration of the box5. Find the distance it will travel in 3 seconds.
Two forces are applied to acar in an effort to move it,as shown in Figure P4.12.(a) What is the resultantvector of these two forces?(b) If the car has a massof 3 000 kg, what accelerationdoes it have? Ignorefriction.
Thieves attempt to transport a 1000 kg safe up a frictionless ramp with inclination θ as shown in Fig. 2. What is the tension in the rope, as a function of θ and g, if the safe moves up the ramp (a) with a constant velocity of 1.0 m/s and (b) with an acceleration of 1.0 m/s2 upward? (c) Does your answer make sense for the limits of θ → 0 and θ → 90°?
Someone is standing on a scale inside an elevator. When the elevator is accelerating upward, the scalereads 850 N; when the elevator is accelerating downward at the same acceleration, the scale reads 800N.Find the acceleration of the elevator, a = ?Find the mass of the person.Find the weight of this person. I know that Fn = mg + ma for upward and Fn = mg - ma for downward, but I am not sure how to find the middle ground that would be the acceleration?
Suppose you jump from the cliffs of Acapulco and perform aperfect swan dive. As you fall, you exert an upward force on theEarth equal in magnitude to the downward force the Earth exerts on you. Why, then, does it seem that you are the one doingall the accelerating? Since the forces are the same, why aren’tthe accelerations? Draw and Explain.
Illinois Jones isbeing pulled from a snake pit with a ropethat breaks if the tension in it exceeds 755N. (a) If Illinois Jones has a mass of 70.0kg and the snake pit is 3.40 m deep, whatis the minimum time that is required topull our intrepid explorer from the pit?(b) Explain why the rope breaks if Jonesis pulled from the pit in less time than that calculated in part (a)
At the instant a race began, a 67-kgkg sprinter exerted a force of 700 NN on the starting block at a 22∘∘ angle with respect to the ground What was the horizontal acceleration of the sprinter? If the force was exerted for 0.32 ss, with what speed did the sprinter leave the starting block?
A box rests on a frozen pond, which serves as a frictionless horizontal surface. If a fisherman applies a horizontal force with magnitude 55.0 N to the box and produces an acceleration of magnitude 3.50 m/s^2, what is the mass of the box? Express your answer in kilograms.
Accident analysis has led experts to believe that Princess Diana experienced a deceleration rate of no less than 700 m/s2 when she was involved in the tragic accident that claimed her life. If she had been wearing a seatbelt experts believe the net force Diana would have experienced would be along the lines of 18,000 N. What would be the rate of deacceleration have been? Assuming Diana had a mass of 60kg.
A 8000 kg engine pulls a train of 5 wagons, each of 2000 kg, along a horizontal track. If the engine exerts a force of 40000 N and the track offers a friction force of 5000 N, then calculate: (a) the net accelerating force (b) the acceleration of the train
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