3. •Consider riding in an elevator rising in a tall building. It speeds up to 2...
3. •Consider riding in an elevator rising in a tall building. It speeds up to 2 m/s, then continues rising at this speed. A.a. What are the two forces acting on you? (Hint: one up and one down. Also, you are not the elevator) B.b. As the elevator is speeding up, which force is stronger. How can you tell (Hint: is it accelerating: which of Newton’s Laws apply?) C.c. Once it reaches a constant speed, which force is stronger? How can you tell? D.d. Which force is stronger: you pushing on the floor or the floor pushing on you? How can you tell?(((((( please show your work , so I can better understand this))) thank you
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3. •Consider riding in an elevator rising in a tall building. It
speeds up to 2...
Consider applying Newton’s second law to a man riding an elevator (perhaps to calculate his acceleration)....
Consider applying Newton’s second law to a man riding an elevator
(perhaps to calculate his acceleration).
Which of the following forces must be considered? Choose all that apply. The force that the man's head exerts on his neck The force that the man's feet exert on the floor of the elevator The force of gravity on the man The force that the elevator floor exerts on the man's feet The force the elevator cable exerts on the elevator car The...
You step into a high-speed elevator on the top floor of a tall building and push...
You step into a high-speed elevator on the top floor of a tall building and push the button for the first floor. The elevator accelerates downwards. How does the normal force N exerted on you by the floor of the elevator compare to your weight? Select one: O a. the normal force is equal to your weight O b. It depends on how fast you are moving O c. the normal force is greater than your weight O d. the...
You are in your favorite elevator, coming to a stop as you go from the ground...
You are in your favorite elevator, coming to a stop as you go from the ground floor to the 4th floor. a) What forces are acting on you as you are coming to a stop in the elevator? Normal force upward and Force of gravity upward Normal force downward and Force of gravity upward Normal force downward and Force of gravity downward Normal force upward and Force of gravity downward Just the Force of gravity downward b) As you are...
Wiring problem. In the elevator shaft of a tall building, there are 11 identical electrical wires...
Wiring problem. In the elevator shaft of a tall building, there are 11 identical electrical wires of finite resistance running from the top of the shaft to the bottom. An electrician needs to determine which wires at the bottom correspond to which wires at the top in order to repair the elevator. One battery and one ammeter are available, and the electrician can connect and disconnect any number of wires at either end. (a) If the electrician starts at the...
2. A car accelerates along a straight road from rest to 90 km/h in 5.0s. What is the magnitude of average accelerat...
2. A car accelerates along a straight road from rest to 90 km/h in 5.0s. What is the magnitude of average acceleration in meters per second squared. 3. If you are driving 110km/h along a straight road and look to the side for 2.0s, how far do you travel during this inattentive period? 4. At highway speeds, a particular car is capable of accelerating at about 1.8m/s?. At this rate, how long does it take to accelerate from 80km/h to...
Renee is on Spring Break and pulling her 21-kg suitcase through the airport at a constant...
Renee is on Spring Break and pulling her 21-kg suitcase through the airport at a constant speed of 0.47 m/s. She pulls on the strap with 120 N of force at an angle of 38° above the horizontal. Assume the ground to be flat, Draw a FBD showing the forces on the suitcase. Find the acceleration of the suitcase. Determine the normal force experienced by the suitcase. Determine the total resistive force (friction) experienced by the suitcase. Find the coefficient...
The phenomena: Three rocks of equal mass are thrown with identical speeds from the top of the same building (identical height).
The phenomena: Three rocks of equal mass are thrown with identical speeds from the top of the same building (identical height). Rock X is thrown vertically downward, rock Y is thrown vertically upward, and rock Z is thrown horizontally. The Question: Which rock has the greatest speed just before it hits the ground? Assume air resistance is negligible. a) Make a prediction based on your prior experience. b) Does the question involve parameters that you know to be indicators of the change in...
Please answer the following physic questions. Thank you! 1. A dog sees a flowerpot sail up...
Please answer the following physic questions. Thank you! 1. A dog sees a flowerpot sail up and then back past a window 5.0 ft high. If the total time the pot is in sight is 1.0 seconds, find the height above the window that the pot rises. 2. An elevator ascends with an upward acceleration of 4.0 ft/s2. At the instant its upward speed is 8.0 ft/s, a loose bolt drops from the ceiling of the elevator 9.0 ft from...
PRE-LAB 3: Acceleration and Force 1. (3pts) In Part 1, you will repeat your Lab 2...
PRE-LAB 3: Acceleration and Force 1. (3pts) In Part 1, you will repeat your Lab 2 Speeding Up experiment with a focus on forces. . Draw a free-body diagram of the forces acting a. on the cart. otes Draw a free-body diagram of the forces acting on the mass. b. Which forces in the two diagrams are equal? c. oipol 3. (4 pts) We will be using the same cart and motion sensor setup we used in last lab: Force...
Consider applying Newton’s second law to a man riding an elevator
(perhaps to calculate his acceleration).
Which of the following forces must be considered? Choose all that apply. The force that the man's head exerts on his neck The force that the man's feet exert on the floor of the elevator The force of gravity on the man The force that the elevator floor exerts on the man's feet The force the elevator cable exerts on the elevator car The...
You step into a high-speed elevator on the top floor of a tall building and push the button for the first floor. The elevator accelerates downwards. How does the normal force N exerted on you by the floor of the elevator compare to your weight? Select one: O a. the normal force is equal to your weight O b. It depends on how fast you are moving O c. the normal force is greater than your weight O d. the...
2. A car accelerates along a straight road from rest to 90 km/h in 5.0s. What is the magnitude of average acceleration in meters per second squared. 3. If you are driving 110km/h along a straight road and look to the side for 2.0s, how far do you travel during this inattentive period? 4. At highway speeds, a particular car is capable of accelerating at about 1.8m/s?. At this rate, how long does it take to accelerate from 80km/h to...
PRE-LAB 3: Acceleration and Force 1. (3pts) In Part 1, you will repeat your Lab 2 Speeding Up experiment with a focus on forces. . Draw a free-body diagram of the forces acting a. on the cart. otes Draw a free-body diagram of the forces acting on the mass. b. Which forces in the two diagrams are equal? c. oipol 3. (4 pts) We will be using the same cart and motion sensor setup we used in last lab: Force...
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