If you step off a high board and drop to the water below, youplunge into the water without injury. On the other hand, if youwere to drop the same distance onto solid ground, you mightbreak a leg. Use Newton’s laws to explain the difference.

Q: Two masses in an Atwood machine are 2.2 kg and 13.3 kg, the vertical distance of the heavier body…

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Q: Find the acceleration of the body of mass 5.0 kg shown below.

A: Let m be the mass of the body. The net force F on the body can be determined as follows.

Q: Calculate the maximum allowable force that can be applied to stop a 1000 kg vehicle if the maximum…

A: Given:Mass, m = 1000 kgMaximum allowable acceleration, a = 2.5g = 2.5 x 9.8 = 24.5 m/s2.

Q: Why do you lurch forward in a bus that suddenly slows? Why do you lurch backward when it picks up…

A: We lurch forward in a bus that suddenly slows, as at the instant the bus slows, body still keeps…

Q: How does a helicopter get its lifting force?

A: The helicopter gets the lifting force by pushing the air downwards and it gets the thrust from the…

Q: What acceleration will result when a 12 N net force applied to a 3 kg object?A 6 kg object

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Q: Two masses in an Atwood machine are 3.3 kg and 14.9 kg, the vertical distance of the heavier body…

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Q: A person fishing hooks a 2.0-kg fish on a line that can only sustain a maximum of 38 N of force…

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Q: To which of Newton's Laws does the following statement apply? a = Fne/m 1st 4th 3rd 2nd

A: Newton's second law states that the acceleration of an object is directly proportional to the net…

Q: Using Newton's First Law, explain why, in a frictionless environment, a cat that is under motion…

A: Using Newton's First Law, explain why, in a frictionless environment, a cat that is under motion…

Q: Mass of body is constant, but its weight is different at different places.Why?

A: Weight is given by,

Q: Of Newton's laws, the law of inertia, the law of motion, and the law of action-reaction, why would…

A: Newton's first law states, a body in a state of rest(or motion) continues to remain so, unless an…

Q: If both the mass of the body and the force acting on it are doubled, then acceleration---- Select…

A: Using newton's law force is given by,                          F = ma then, acceleration is,…

Q: Why can we neglect forces such as those holding a body together when we apply Newton’s second law of…

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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: 15. A 7.5 kg cannon ball leaves a canon with a speed of 185 m/s. Find the average net force applied…

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Q: Is it possible to utilise an elastic rope that can support the weight of an 860 kg automobile at…

A: in this question we use elastic potential strength .

Q: A body begins to slide over the surface of another, when pulled with a force of 10N, if we pulled…

A: Given Data : The pulling force at which the body starts moving is given as F = 10N.

Q: Ignoring air resistance, if a 10 kg box and a 100 kg box were both dropped from the top of a V […

A: Given data: Mass (m1) = 10 kg Mass (m2) = 100 kg Air resistance is negligible

Q: Why does a bungee jumper feel weightless during the jump?

A: A bungee jumper feels weightlessness when he jumps the platform. When the jumper is standing on the…

Q: 23. A 5.00 x 10°-kg rocket is accelerating straight up. Its engines produce 1.250 x 10' N of thrust,…

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Q: Does something so small matter? What is the difference in the force experienced by the dancer (50…

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Q: The figure shows an acceleration-versus-force graph for a 200-g object. What should be the value of…

A: Newton's second law of motion determines the force experienced by a body which varies linearly to…

Q: When I play tug-o-war with my 47 kg dog, I can "win" with a 380N pull at a 25° upward tilt - he…

A: mass of dog (m) = 47 kg applied force (F) = 380 N @25o upwards

Q: Two masses in an Atwood machine are 4.8 kg and 14.4 kg, the vertical distance of the heavier body…

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Q: A hawk accelerates as it glides in the air. Does the force causing the acceleration come from the…

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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: A relative of yours belly flops, from a height of 2.50m (ouch!), and stops moving, after descending…

A: It is given that,

Q: What if we have air resistance in the environment? Will there be any differences? Justify your…

A: To determine: What happens if there is air resistance in the environment, and what are the…

Q: If a Mack truck and a motorcycle have a head- on collision, upon which vehicle is the impact force…

A: Newton's third law of motion states that to every action there is an equal and opposite reaction.…

Q: What acceleration will result when a 12-N net force applied to a) 3-g object and b) 6-g object?

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Q: You’ve probably seen pictures of someone pulling a tablecloth outfrom under glasses, plates, and…

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Q: Why can we neglect forces such as those holding a body together when we apply Newton’s second law?

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Q: Why does a heavy parachutist fall faster than a lighter parachutist who wears a parachute of the…

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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: If the mass of the sliding block is somehow tripled at the same time the net force on it is tripled,…

A: Using the Newton’s second law of motion, write the expression for net force of the first case.

Q: Your empty hand is not hurt when it bangs lightly against a wall. Why does it hurt if you are…

A: From newton's 2nd law we have,

Q: A 4.80 Kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strenght…

A: Given, a cord of negligible mass having Tension in cord, T= 75 N Bucket of water has Mass, m= 4.80…