The auto in the sketch moves forward as the brakes are applied. A bystander says that during the interval of braking, the auto’s velocity and acceleration are in opposite directions. Do you agree or disagree?

Q: What is third law of motion

A: According to Newton's third law of motion, the forces always occur in pairs that is if a body exerts…

Q: Be picky and correct your friend who says, “In free fall, air resistance is more effective in…

A: An object that falls free is an object that comes under the influence of gravity. Anybody which only…

Q: In a movie, the hero jumps straight down from a bridge onto a small boat that continues to move with…

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Q: Name two forces that generally oppose motion that occurs in our daily experience

A: The two forces that generally oppose the motion that occurs in our daily experience is: Friction…

Q: Ignoring friction, If an equal force is applied to a 20 kg box and a 2 kg box, the acceleration of…

A: Given that:- An equal force is applied on both box.

Q: If acceleration of your car is zero, does that mean your car is not moving? Yes or no? Defend your…

A: Acceleration of an object is the change in velocity of an object per unit time.  It's si units are…

Q: If two objects having the same size fall through air at different speeds, which encounters the…

A: Air resistance force is increasing with the increase of speed and the frontal area of the object.

Q: Oscar can run 11 miles in 90 minutes,while candy can run 6 miles in 50 minutes.Who is the faster…

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Q: Give an example of Newtons third law of motion

A: Introduction: Newton's third law of motion states that, If any object exerts a force on one object…

Q: Which of the following can be explained using Newton's third law of motion? oNnlains whu Qvory forco…

A: Newton's law of motion describes the relation between the motion of object and force applied on it.

Q: Choose the correct pair of action / reaction forces. Assume the car is moving forward. O tire pushes…

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Q: State the law of action and reaction by giving

A: Given,   State the law of action and reaction giving two examples of it.

Q: If the sprinter from the previous problem accelerates at that rate for 20 m, and then maintains that…

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Q: When you kick a football, what action and reaction forces are involved? Which force, if any, is…

A: When we kick a football with a force, it is our action force. In return the ball applies an equal…

Q: What is the meaning of free fall?

A: When a motion of an object or a body occurs under influence of only gravity then the motion is said…

Q: Forces of 3.0 N and 4.0 N act at right angles on a block of mass 2.0 kg. Show that the acceleration…

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Q: What is the relationship between force and time in stopping an object?

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Q: How does the direction of acceleration compare with the direction of net force that produces it?

A: Write the expression for acceleration,

Q: How is Newton’s Third Law of motion applied in walking or in rowing a boat?

A: How is Newton’s Third Law of motion applied in walking or in rowing a boat?

Q: If an object falls downward, its acceleration and velocity?

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Q: How does the speed of a falling object affect the amount of air resistance that it experiences?

A: As different objects fall through air, they will experience some amount of air resistance. It is due…

Q: Match each term or phrase on the left with the term or phrase on the righ which it most closely…

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Q: According to Newton's second law of motion, in which of these situations is the object accelerating?…

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Q: When the girl holds the rock with as much force upward as gravity pulls downward, the net force on…

A: Here, it is mentioned that the girl is holding a rock. The upward force that a girl exerts on rock…

Q: Cite and discuss examples when a person actually experience at rest and in motion at the same time

A: There are many examples for a body is at rest and in motion at the same time. When we are sitting…

Q: Why do we disregard air resistance when calculating velocity?

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Q: Which car showed least acceleration?

A: Given,  2 forces act on a car at a particular angle.  We are given 6 such cases.  F1 = 60 N F2 = 100…

Q: Choose the BEST answer to the following: The team that wins in a tug-of-war is the team that (a)…

A: Answer: bi.e  pushes hardest on the ground

Q: What are the similarities and differences of Galileo and Aristotle's concepts of motion?

A: The definitions are straightforward: heliocentric vs. geocentric planetary systems, and so on. The…

Q: pushes rightward on the tire. 1. Right end of the rope--elephant's body Action Force: Reaction…

A: To determine: Action and reaction forces and the direction of the forces.

Q: What is the effect of air resistance on velocity of a projectile?

A: Objects moving through air are slowed down due to air resistance, sometimes called drag.

Q: Explain how the illustration shows the first law of motion

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Q: What state of motion did Aristotle attribute to Earth?

A: Answer :Natural Motion

Q: Rank the following speeds in order of increasing magnitude.Indicate ties where appropriate. (a) 0.25…

A: a) 0.25 m/s b) we know that conversion of km/h to the  m/s 1km/h=1 km1 hour=1000 meter3600 second…