What is drag? What causes it? Why do we usually try to minimize it?

Q: Two friends are having a conversation. Anna says a satellite in orbit is in freefall because the…

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Q: How can we reduce friction?

A: Friction is defined as the resistance offered by a surface on an object, when moving through it.…

Q: An apple falls because of the gravitational attraction to Earth. How does the gravitational…

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Q: What is stall? What causes an airfoil to stall? Why are commercial aircraft not allowed to fly at…

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Q: What is net force on 1-N apple when you hold it at rest above your head? What is net force on it…

A: When the apple is at rest above the head, it is in stable equilibrium. The net force on an object in…

Q: How can you explain Newton's Law in life?

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Q: Suppose you jump from the cliffs of Acapulco and perform a perfectswan dive. As you fall, you exert…

A: When some unbalanced forces are applied to a body then it produces an acceleration in the body. This…

Q: 5. Einstein walks into an elevator cab and steps on a scale. If Einstein's mass is 62.0 kg, what…

A: Given : Einstein's mass (m) = 62 kg Acceleration (a) = 3.20 m/s2

Q: Two friends are having a conversation. Anna says a satellite in orbit is in freefall because the…

A: When gravity force  alone acts on a body then the vertical motion of the body is called free fall.…

Q: Hello, I have a question - Explain how you could produce a large acceleration using a very small…

A: You could produce a large acceleration using a very small Force only when :-(i) the mass is very…

Q: What is meant by a free body diagram? What is its use?

A: Definition:It is a graphical representation in which the body is isolated from a system of bodies…

Q: How does changing the mass affect acceleration?

A: According to Newton's second law of motion; F=ma

Q: . An astronaut on a space walk discovers that his jet pack no longerworks, leaving him stranded 50 m…

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Q: Explain the concept weightlessness.

A: Weightlessness of an object implies that the object is in freefall. The freefall situation will…

Q: What are Static Friction? what are the laws associated with it?

A: Static friction is a type of the friction experienced when individuals try to move a stationary…

Q: The former Soviet Union launched the first artificial Earth satellite, Sputnik, in 1957. Its mass…

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Q: Space X's Crew Dragon Spacecraft now carries astronauts as well as cargo. Dragon is launched on top…

A: Given,

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: What is induced drag on wings? Can induced drag be minimized by using long and narrow wings or short…

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Q: 6. What is 55 miles per hour express Imiles 7. Recal that the formula for the breaking distance of a…

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

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Q: What is drag force? Distinguish between viscous drag and high speed drag.

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Q: A bag of sugar weighs 3.00 lbs on earth. what would it weigh in newtons on the moon? where the…

A: Given: A bag of sugar weighs 3.00 lbs on earth. what would it weigh in newtons on the moon? where…

Q: A bag of sugar weighs 1.50 lb on Earth. What would it weigh in newtons on the Moon, where the…

A: Let the mass of the sugar bag be denoted by m.Let the weight of the sugar bag on the earth be…

Q: Name: Date: Freefalling-Level 3 (Ignore air resistance, use 9.8 m/s for gravity) Per: Ax = =at2+Vit…

A: # 'a' will be equal to acceleration due to gravity that is 9.8 m/s² # ∆x = displacement of ball =…

Q: Explain how Lenz’s law applies to parachute drop ride?

A: Lenz law states that magnetic field opposes motion of magnet, a parachute drop ride also the…

Q: What is force

A: In physics, force is defined as the push or pull on an object with mass that causes it to change its…

Q: Two friends are having a conversation. Anna says a satellite in orbit is in free fall because the…

A: When the net external force on an object is its weight, we say that it is in free-fall, that is, the…

Q: A bag of oranges weighs 3.00 lb on Earth. What would it weigh on the Moon, where the free-fall…

A: Mass is a physical quantity that doesn’t vary when moved from on planet to another planet.The…

Q: Are air resistance and drag force the same? If so explain why and if not what are the differences.

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Q: What is the net force?

A: Given data: F1 = 5 N F2 = 5 N Forces are in opposite direction Required: The net force (Fnet)

Q: What is the relationship between weight and mass? Which is an intrinsic, unchanging property of a…

A: Weight and mass

Q: Explain why objects in orbit feel weightless.

A: To determine: Why object feel weightless in the orbit?

Q: do the two masses have the same acceleration

A: Acceleration a = Force /mass

Q: If you weigh yourself on a bathroom scale at the equator, isthe reading you get greater than, less…

A: It is known that due to rotation of the earth along its own axis , the weight of a body changes with…

Q: What is the net force

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

Q: Gravity on the surface of the Moon is only 1/6 as strong as gravity on Earth. What is the weight of…

A: The mass of the object doesn’t depend on gravity and hence it is the same on both Earth and…

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?”