A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.73 of the person's regular weight. Calculate the acceleration of the elevator.
Q: A man weighing 700 N is in an elevator that is accelerating upward at 4 m/s2. The force exerted on…
A:
Q: . A woman stands on a weighing scale in a non-moving elevator. When the elevator started to move,…
A:
Q: A 5-kN bear slides down an ice slide without friction. If the slide makes an angle of 37° with the…
A:
Q: A car moving with a velocity of 20m/s in the north direction, is acted upon by a pair of balanced…
A:
Q: A rock is suspended from a string; and it accelerates upward. Which statement is true concerning the…
A: The net force is given by the Newton's second law. Net force = mass x acceleration
Q: The car in the previous question has an acceleration of 5.7 m/s? up the hill and mass of 737 kg.…
A: Data Given , Car Acceleration ( a ) = 5.7 m/s2 Mass of the car ( m ) = 737 kg We have to find out…
Q: Most moving objects experience non- conservative forces, such as...(you can choose more than one…
A: Non conservative forces are dissipative forces. These forces take energy away from the system as the…
Q: A plum bob hangs from the roof of a railway coach. What angle will plum line make with vertical when…
A:
Q: A woman stands on a weighing scale in a non - moving elevator. When the elevator started to move,…
A: Let the weight of a woman in a non-moving elevator be W = mg Now when the elevator starts moving…
Q: 120-lb person stands on a bathroom spring scale while riding in an elevator. If the eleva- tor has…
A:
Q: You push on box G that is next to box H, causing both boxes to slide along the floor, as shown in…
A: We are pushing box G that means we are in contact with box G only. So we can only experience force…
Q: Sarah stands on a bathroom scale inside an elevator. Sarah's mass is 50 kg. What does the scale read…
A: Given Mass is m=50 kg Acceleration due to gravity is g=9.80 m/s2 Uniform Velocity of elevator is…
Q: A 65.7-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is…
A: Given The mass of the person is m = 65.7 kg. The upward acceleration is a = 1.77 m/s2. The…
Q: An elevator, moving upward, decreases in speed from 8.20 m/s to 1.99 m/s in 2.03 s. Assuming…
A: Given values, Initial velocity of elevator, u=8.20 m/s Final velocity of elevator, v=1.99 m/s time,…
Q: A man standing on a scale in an elevator notices that the scale reads 30 newtons greater than his…
A: Let the mass of the person = m let the weight of the person = w Reading of the scale = 30 N greater…
Q: An object is in free fall if the only force acting on it is gravity. True False
A: A free fall is defined as the motion of an object which is only under the force of gravity and no…
Q: You are standing on the floor of a stationary elevator. You weigh 99.7 kg, what is the magnitude of…
A: Given Mass of man m=99.7kg Free body diagram is shown below
Q: Mang Tamang is carpenter, he pulls load of lumber on a cart with a 60-lb force directed 40 degrees…
A: Given data: Force, F=60 lb Angle above the horizontal, θ=40°
Q: What acceleration does a baseball of mass 0.27 experience when hit by a bat if 180 N are exerted by…
A: Given Mass = 0.27 kg Force When a baseball hit by a bat(F) =180N We know that…
Q: Determine the normal force exerted on the woman’s feet by the floor.
A: Given data: Mass of the woman, m= 60000 g =60 kg Acceleration of the elevator, a=120 cm/s2=1.2 m/s2
Q: A metal ball of mass 10 g falls in oil with a acceleration of 3.0 m/s at one instant. Calculate the…
A: a=Acceleration=−3 m/s2g=Acceleration due to gravity=9.81 m/s2m=Mass of ball=10 g
Q: Suppose that during the launch of a rocket from the surface of the Earth, an astronaut onboard the…
A:
Q: The of the tension force of the string is: Choices: greatest in I greatest in II greatest in III…
A: For Equilibrum forces must be balanced
Q: A block has a mass of 81.0 kilograms. The coefficient of static friction between the block and the…
A: Given data: Mass (m) = 81.0 kg Coefficient of static friction (μs) = 0.621 Horizontal force (F) =…
Q: A man stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the…
A: Given that, The scale reads only 0.75 of her regular weight. W=0.75 mg
Q: An elevator, moving upward, decreases in speed from 8.41 m/s to 1.70 m/s in 2.02 s. Assuming…
A:
Q: Fighting Over a Toy Anudja is holding a stuffed dog, with a mass of 0.30 kg when Sarah decides that…
A:
Q: You are driving in your car and you apply a constant force to your brake pedal. Which of the…
A:
Q: When you are in an elevator accelerating downward your apparent weight is: zero O less the same as…
A:
Q: A pendulum bob of mass 50 g is suspended from the ceiling of an elevator. Find the tension in the…
A:
Q: A force of 300N acts on a body of mass 150kg calculate the acceleration of body using D alemberts…
A:
Q: A boat moving with a velocity of 10m/s, towards west is acted upon by a pair of balanced forces.…
A: Velocity of boat (v) = 10 m/s due west Let the pair of balanced forces acting on the boat are F and…
Q: Suppose there is a box of books with a mass of 10 kg resting on a flat horizontal table, and What is…
A: Given:- The mass of the box of books m = 10 kg The coefficient of the static friction between the…
Q: Calculate the magnitude of the force of kinetic friction between the hockey puck and the ice.…
A: Given:
Q: A body of mass 5 kg accelerates from 12 m/s to 20 m/s in 4 seconds due to the application of a force…
A: Given: The mass of the body is m=5 kg. The initial velocity is u=12 m/s. The final velocity is v=20…
Q: A 3.5 kg bucket of water is raised from a well by a rope . If the upward acceleration of the bucket…
A:
Q: Static friction force is direct proportional to O pushing force O Pulling force O gravitational…
A:
Q: You are in an elevator that is traveling upward, but slowing down at a rate of 2 m/s?. If your mass…
A:
Q: falling at a constant speed. What forces are on the skydiver? 1. Up 2. Down 3. Left
A: For a freely falling man, downward acceleration is equal to the acceleration due to the gravity.…
Q: What is the reading of a bathroom scale when a man of mass 72 kg stands on it while riding in an…
A:
Q: Two boxes, one of mass 20 kg and the other of mass 30 kg, are sliding down a frictionless inclined…
A: When a body is sliding on a inclined plane its acceleration does not depend on its mass rather…
Q: 2.2. A metal ball of mass 10 g falls in oil with an acceleration of 3.0 m/s? at one instant.…
A: Mass of the ball is m = 10 g = 0.01 kg Acceleration of the ball is a = 3.0 m/s2
Q: A 90-kg man stands in an elevator that is moving up at a constant speed of 5.0 m/s. The force…
A:
Q: An elevator is moving down from the 5th floor and slows down at a rate of 1.66 m/s² to stop at the…
A: Given Data Acceleration of the elevator is a=-1.66 m/s2 (as the elevator is slowing down, its…
Q: If the apparent weight of a man is 840 N when the elevator that moves downward with acceleration 4…
A: Given Data " The weight of the man when the elevator moves down is given as W = 840 N. The…
Q: A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the…
A: Scenario: In a motionless elevator, a person stood on bathroom scale which started accelerating…
Q: In order to keep an object weighing 20 newtons moving at constant speed along a horizontal surface,…
A: The given object maintains a constant speed. An object moves at a uniform speed along a horizontal…
Q: A ball with a weight of 20N is thrown vertically upward. What is the acceleration of the ball just…
A: The Accleration of the ball in it overall journey will remain constant and that is g (10 m/s2)…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Newton's Laws and Uniform Circular Motion Q5: Please answer and explain step by step in detailA 1500 kg car traveling at 15 m/s suddenly runs out of gas while approaching the valley shown in the figure(Figure 1). The alert driver immediately puts the car in neutral so that it will roll. What will be the car’s speed as it coasts into the gas station on the other side of the valley?Please help me this all questions. You have been hired as an expert witness in a court case involving an automobile accident. A piece of a bullet was found in the accident. The force on the bullet is given by the formula F=580 – (1.80 x 10^5)t over the time interval t=0 to t = 3.0 x 10^-3s. In this formula, t is in seconds and F is in newtons. (i) Sketch a graph of F vs. t for t=0 to t = 3.0 ms. (ii) Using graphical methods, estimate the impulse given by the bullet. (iii) As a result of this impulse, the bullet achieves a speed of 220 ms-1, given to it in the barrel of a gun, what must its mass be? (iv) The accident involved car A of mass 1900 kg which crashed into stationary car B of mass 1100 kg. The driver of car A applied his brakes 15 m before he crashed into car B. After the collision, car A slid 18 m while car B slid 30 m. The coefficient of kinetic friction between the locked wheels and the road was measured to be 0.60. Determine the velocity for each car after the…
- A lamp hangs vertically from a cord in a descending elevator that decelerates at 2.1 m/s2. (a) If the tension in the cord is 91 N, what is the lamp's mass? (b) What is the cord's tension when the elevator ascends with an upward acceleration of 2.1 m/s2? (a) Number Enter your answer for part (a) in accordance to the question statement Units Choose the answer for part (a) from the menu in accordance to the question statement This answer has no units° (degrees)mkgsm/sm/s^2NJWN/mkg·m/s or N·sN/m^2 or Pakg/m^3m/s^3times (b) Number Enter your answer for part (b) in accordance to the question statement Units Choose the answer for part (b) from the menu in accordance to the question statement This answer has no units° (degrees)mkgsm/sm/s^2NJWN/mkg·m/s or N·sN/m^2 or Pakg/m^3gm/s^3timesIn the Soapbox Derby in (Figure 1), young participants build non-motorized cars with very low-friction wheels. Cars race by rolling down a hill. Assume that the track begins with a 63-ft-long (1 m = 3.28 ft) section tilted 15 ∘ below horizontal. Part A: What is the maximum possible acceleration of a car moving down this stretch of track? Express your answer to two significant figures and include the appropriate units. Part B:If a car starts from rest and undergoes this acceleration for the full l, what is its final speed in m/s ? Express your answer using two significant figures.At a given instant in time, a 12kg rock is observed to be falling with an acceleration of 6.25m/s2 (Note that this is different from the gravitational acceleration. This difference must be due to another force, air resistance, pushing up on the rock. What is the magnitude and direction of the net force on the rock? What is the magnitude and direction of the gravitational force acting on the rock? What is the magnitude of the force of the air resistance acting on the rock at this instant?
- HW3, Q5 Express your answer using two significant figures and in ΩAfter watching the video of Felix Baumgartner setting the world record free fall, answer these two questions and upload to this folder. For both questions assume he was in free fall with no air resistance. Also assume the acceleration due to gravity is 10 m/s^2. 1. How fast is Felix going after 30 seconds? 2. How far did Felix fall after 30 seconds?An object of mass m travels along the parabola y = x2 with a constant speed of 10 units/ sec. What is the force on the object due to its acceleration at (0, 0)? at (2^1/2, 2)? Write your answers in terms of i and j. (Remember Newton’s law, F = ma.)
- Help please. Teacher hasn't returned my work on this yet, and we're having a quiz on Monday. A 2.75-kg cat moves in a straight line (x-axis). The graph on the right shows the x-component of the cat’s velocity as a function of time. What is the net force on the cat? a. 0b. 27 Nc. 11 Nd. 2 N The maximum net force occurs during the time interval a. t = 0 to t = 10 secondsb. t = 6 to t = 10 secondsc. t = 2 to t = 6 secondsd. t = 0 to t = 2 seconds The net force on the cat is equal to zero between the time intervala. t = 6 to t = 10 secondsb. t = 2 to t = 6 secondsc. t = 0 to t = 10 secondsd. t = 0 to t = 2 seconds Thanks!A force of 14N in the negative x-direction acts simultaneously to a force of 16N in the positive y-direction. Calculate the resultant force: 1. Using pythagoras theorem 2. Tail-to-head method 3. Using tail-to-tail method (NB: Give a full answer having magnitude and direction)Hello, please answer the following Physics question correctly. *If you solve the question CORRECTLY and I will 100% leave a thumbs up for you. Thank you. Physics Question: 3) An object with mass 75 kg is pulled on a horizontal surface by a horizontal pull of 50 N to the right. The friction force on this object is 30 N to the left. What is the acceleration of the object?