An elevator is moving downward and slowing down with an acceleration equal to one-quarter that of gravity. If a person who weighs 800 N when at rest on Earth steps on a bathroom scale in this elevator, what will the scale read?

Q: The mass of a subway car and passengers is 34,500 kg. If its acceleration as it leaves a station is…

A: Given data The mass of a subway car and passengers is: m = 34500 kg The acceleration of the car is:…

Q: when a student steps on a bathroom scale inside an elevator that is ar rest, the cale reads 490N.…

A: Force brings about motion and changes in it. Free body diagram gives whole idea of the forces…

Q: A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the…

A: Given Actual weight = mg  Apprant weight = normal Reaction = 0.62 mg

Q: Is it true that when you drop from a branch to the ground below, you pull upward on Earth? If so,…

A: From Newton's law of gravitation: The gravitational force acting between two massive objects is…

Q: A string 1.0 m long breaks when its tension is 100 N. What is the greatest speed at which it can be…

A: You have to use two formulas here. First one is the Fc=mac to find the acceleration. and the 2nd one…

Q: An object of mass 200 g moving at a constant speed of 2 m/s has a net force closest to

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Q: You step on a crate that is sitting on a smooth surface, and it accelerates. How much greater would…

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Q: Suppose you are standing in an elevator that is accelerating. What does the acceleration have to be…

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Q: A woman stands on a weighing scale while riding in an elevator. When the elevator is at rest, the…

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Q: What acceleration will result when a 80 N force is applied to a 6.4 kg object?

A: We know F=ma   F=force= 80 N m= mass = 6.4 kg a=acceleration

Q: On earth the weight of a body of mass 1.0 kg is 10 N. What will be the weight of a boy of mass 37 kg…

A: Weight of the body = mass×acceleration of gravity due to earth

Q: Your perception of weight, ie. apparent weight is: a measure of the net force acting upon you ) the…

A: Apparent weight tells about how heavy the body actually is.

Q: Suppose that you jounce up and down while weighing yourself on a bathroom scale. Which varies: the…

A: If a person is jouncing up and down while weighing yourself on a bathroom scale the normal force…

Q: what is the net force experienced by a 20 N book sitting on a desk with a 30 N object on top of it

A: Newton’s law of motion: For every action there is an equal and opposite reaction.Free body diagram:

Q: is free fall acceleration  independent of mass ?

A: Freefall is a condition where an object falls under the force gravity with a gravitational…

Q: What is the force on a 1000 kg elevator that is falling freely at 9.8 m/s ?

A: Given data The mass of the elevator is m=1000 kg The accleration during the free fall is a=9.81 m/s2…

Q: When a man is standing on a scale in an elevator that is accelerating upward, the scale reading will…

A: When a man is standing on a scale in an elevator that is acceleration upward , the scale reading…

Q: A 150 lbs astronaut finds that his weight is reduced to 60 lbs at a distant location, what is the…

A: Given:The actual weight of the astronaut is 150 lbs. The apparent weight of the astronaut is 60 lbs.

Q: The acceleration due to gravity on a planet is 9.2 m/s2. The mass (in kilograms) of a book that…

A: Let g be the acceleration due to gravity on the planet, W be the weight of the book measured on the…

Q: Is it true that when you drop from a branch to the ground below, you pull upward on Earth? If so,…

A: According to newton any object of mass (say “m”) in the universe is attracted by any other body in…

Q: What is the weight of a 80 kg man (just normal, on planet Earth...) ?

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Q: A student stands on an elevator scale at rest on the 64th floor of a building. the scale reads 847…

A: The reading on the scale when acceleration is zero is W, and N is the reading when elevator is…

Q: Imagine a person riding in an elevator that is just leaving the top floor and picks up speed for 3…

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Q: The elevator in the new Engineering building moves from the ground to the top floor which is 28…

A: total height H = 28 m elevator start from rest and gain a height h with acceleration a =2.42…

Q: The elevator in the new Engineering building moves from the ground to the top floor which is 25.5…

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Q: The amount of net force (in N) required to keep a 3-kg object moving rightward with a constant…

A: Given data: Mass (m) = 3 kg Constant velocity (v) = 4 m/s Required: The amount of net force required…

Q: Would the springs inside a bathroom scale be more compressed or less compressed if you weighed…

A: Part A If the lift is moving upward with constant velocity, the net acceleration is zero. Which…

Q: You are on an elevator that is plummeting toward the ground at 30 m/s and you jump up right before…

A: Veg= Velocity of elevator with respect to ground=30 m/s (downward) Vpe=velocity of person with…

Q: What would a person weigh on the moon where the acceleration due to gravity is 1.67m/s, if their…

A: Given data: Acceleration due to gravity on the moon (g) = 1.67 m/s2 Mass (m) = 75 kg Required:…

Q: What horizontally-applied force will accelerate a 400-kg crate at 1.5 m/s2 across a factory floor…

A: The mass of a crate is, m=400 kg The acceleration of a crate is, a=1.5 m/s2 The frictional force…

Q: A 60 kg man is standing on a scale in an elevator moving up at 2 m/s^2, what is his weight? What is…

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Q: The mass of a subway car and passenger is 40,000 kg. If its acceleration as it leaves a station is…

A: Mass M = 40,000 kg Acceleration a = 0.9 m/s2

Q: Standing on your bathroom scale in an elevator, you are shocked to see that you weigh 1.5 times your…

A: Let the weight of the person is W=mg Increased weight is WI=1.5mg

Q: The force that propels a rocket is provided by   (A) Gravity (B) Newton’s laws of motion (C) Its…

A: According to Newton's second law of motion ,net force acting on an object is given as,  F= m a  Here…

Q: A 0.3 Kg coffee cup is sitting on a desk. If the acceleration due to gravity is 9.8 m/s what is the…

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Q: You drop a tennis ball and a steel ball of the same size. Ignoring air resistance, which has a…

A: Given:- we drop a tennis ball and a steel ball of same size . Data :- density of steel is more than…

Q: You are in an elevator that is traveling upward, but slowing down at a rate of 2 m/s?. If your mass…

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Q: When a student steps on a bathroom scale inside an elevator that is at rest, the scale reads 490 N.…

A: Weight of student when elevator at rest: W =  490 N Weight of student when elevator is moving: W' =…

Q: What will be the acceleration of a 1.5 kg cart if a net force of 45 N is applied to it while at…

A: Given  Mass of cart  M = 1.5 kg Force applied on cart  F = 45 N  To find  Acceleration of cart

Q: A woman stands on a weighing scale in a non - moving elevator. When the elevator started to move,…

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Q: Supposing you were in space in a weightless environment, would it require a force to set an object…

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Q: A force of 600 Newtons acts on a ball for 1.5 seconds after being hit by a volleyball player. If the…

A: Given  Force acts on ball , F = 600 N  Time , t = 1.5 second s  Mass of ball , m = 275 gm = 275×10-3…

Q: Tiny, the 50 [kg] turtle, is standing on a scale in an elevator. While the elevator is accelerating…

A: (given) Mass of the turtle is 50 kg Scale reading by elevator =m(g⇀-a⇀) Since acceleration is zero.…

Q: A 60 kg person stands on a bathroom scale in an elevator. What does the scale read if the person is…

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Q: In an experiment performed in a space station, a force of 60N causes an object to have an…

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!