Your “normal weight” is the weight a scale would read when you are not accelerating. What would your acceleration have to be in order for the scale to read 1.5 times your normal weight? Would the acceleration be upwards or downwards?

Q: ou step into an elevator, and it accelerates to a downward speed of 8.6 m/s in 2.1 s.…

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Q: Bob pushes on a frictionless cart of mass 6.9 kg and the cart has an acceleration of 7.7 m/s2. If…

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Q: Consider a book that weighs 15 N at rest on a flat table. How many newtons of support force does the…

A: Given:Weight of the book = 15 N

Q: Suppose that a sled is accelerating at a rate of 2 m/s?. If the net force is tripled and the mass is…

A: Given: a=2 m/s2 be the acceleration initially. Let m be the original mass F be the net force applied…

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

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Q: Name: Student number : 4. Calculate: (1)A net force of 450 N accelerates a bike and rider at 3.5…

A: (1) Force = 450 N Acceleration = 3.5 ms2 To determine : Mass m Formula used: F = m × a Using…

Q: David weighs 140 pounds on Earth. What is his weight on the Moon, which has one-sixth of Earth’s…

A: Given dataThe weight on the earth measured by David is WE  = 140 pounds. The acceleration due to…

Q: Jack pushes a box to the left with 3 N, Jill pushes the same box to the right with 3 N. What is the…

A: Consider a box as shown below. Two forces F1→ and F2→ are acting on this object. The two…

Q: It takes the elevator in a skyscraper 3.0 s to reach its cruising speed of 9 m/s. A 50 kg passenger…

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Q: How much force is needed accelerate a 35 kg sled from 30 m/s to 65 m/s in 0.4 seconds.

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Q: What net force does a sliding desk experience when you exert a force of 100 N and the friction…

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Q: Fill in the blanks with the terms “greater than”, “less than”, or “equal to” to outline how the…

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Q: scale in the elevator's floor measures the weight of the passengers, and it has d) says that the…

A: If the elevator is moving at any constant speed The acceleration is equal to zero and weight is same…

Q: When landing after a spectacular somersault, a 30.0 kg gymnast decelerates by pushing straight down…

A: The mass of the gymnast, m=30.0 kg The deceleration of the gymnast, a=7·g

Q: accelerates from rest to a speed of 15 m/s in 5.0 seconds? A man weighs 900 newtons standing on a…

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Q: State in your own words: Newton’s first law, Newton’s second law, Newton’s third law, the difference…

A: Newton gave three important law of motion which helps us to identify motion around us. These three…

Q: Neil Armstrong  did an experiment on another planet and dropped a 1kg rock from rest and he found…

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Q: A baseball pitcher throws a 100 mph fastball to batter Brandon Bopp. Bopp hits a 450 foot home run…

A: Given: A baseball pitcher throws a 100 mph fastball to batter Brandon Bopp. Bopp hits a 450 foot…

Q: A stalled car is being pushed up a hil by 3 people, and it is moving at a constant speed. the net…

A: Mathematical Proof Object is moving with constant velocity v = k m/s So the change in velocity Δv= 0…

Q: What is Zach’s weight before the elevator starts braking? What is Zach’s weight while the elevator…

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Q: a lady weighing 60kg on weighing scale inside a lift which is moving downwards with an acceleration…

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Q: How do you relate force and motion?

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Q: When you stand on Earth, your feet push against it with a force equal to your weight. Why doesn’t…

A: By the Newton second law, the acceleration of anybody can be calculated as,  Here, F is net force…

Q: how the friction force acting on the crate compares to your push.

A: Introduction: The friction force is a force that opposes the motion of the object and the direction…

Q: You stand in an elevator on a scale. If the scaled reads 9/10 of your weight, what is the…

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Q: A 0.11 kg hockey puck is traveling at -12 m/s when it is struck by a stick. As a result, the puck…

A: Given: The mass of the puck is 0.11 kg. The velocity in the negative direction is -12 m/s. The…

Q: During takeoff a jet aircraft goes from 0 m/s to 48 m/s in 4 seconds.  What is the net force exerted…

A: Given: u = 0 m/s, v = 48 m/s, t = 4 s, m = 20,000 kg

Q: Your mass is 75.0 kg, and the sled s mass is 23.3 kg. The sled is moving by itself on the ice at…

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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: An elevator is moving downward and slowing down with an acceleration equal to one-quarter that of…

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Q: A vehicle designed for exploring the moon's surface is being tested on earth, where it weighs…

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Q: A man (100 kg) rides an elevator and brings a scale with him..for science. 1) Before pressing any…

A: 1) Fnet=N-Wma=N-W     =N-mgThe elevator is at rest, so acceleration, a=0m0=N-mgN=mg  =100 kg9.80…

Q: A person weighs a 5.0 kg fish using a spring scale attached to the ceiling of an elevator. What does…

A: Given  Fish  weight = 5 kg  The external forces acting on the fish are the downward force of gravity…

Q: What happens to the acceleration if you double the mass of a cart while it is undergoing a constant…

A: Answer:- (d) One half as much Newton's second law states that the force acting on the body causes a…

Q: What would a boy weigh on the moon where the acceleration of gravity is only 1.6 m/s^2, if he…

A: From the weight of the person on earth, we will calculate the mass and then using that mass we will…

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: What will happen in each of these examples? If Newton's 3rd Law is the same on both objects, how…

A: Newton's third law states that - To every action there is an equal and opposite reaction. It means…

Q: A car with the mass of 800 kg is moving to the right with a constant speed of 1.4 m/s what is the…

A: Given data:  Mass (m) = 800 kg Constant Speed (v) = 1.4 m/s, towards right

Q: Calculate the force you exert when you are standing on the ground (1 lb = 0.454 kg). Is the force…

A: Let us suppose the mass of person is 70 kg

Q: During takeoff a jet aircraft goes from 0 m/s to 53 m/s in 9 seconds.  What is the net force exerted…

A: Given-  Mass m= 21,000 kg Initial speed=0 m/s   Final Speed =53 m/s  time t=9 seconds To find the…

Q: What is the net force

A: Force is a vector quantity therefore while calculating net force on an object the individual forces…

Q: You are pulling your little sister on her sled across an icy (frictionless) surface. When you exert…

A: The acceleration, a=2.5 m/s2   The force, F=120 N   The mass of the sled, m=7.4 kg

Q: Bob pushes on a frictionless cart of mass 6.8 kg and the cart has an acceleration of 5.7 m/s2. If…

A: Given: The mass of the cart is 6.8 kg. The acceleration of the cart is 5.7 m/s2.

Q: You are walking along when you slip on some ice and fall. For a moment you are in free fall. During…

A: mass of man m= 55 kg gravitational acceleration g= 9.8 m/s^2

Q: ride down the hill on your bicycle, you accelerate at 0.5 m/s2. If the total mass of your body and…

A: here we can use pseudo F=  (mg-ma)  BECAUSE ACC IS DOWNWARD DIRECTION

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”