1. What happens in a vacuum? Why do you think that is? 2. Why does it hurt more if you jump from a roof than if you jump from a chair What two factors affect the terminal velocity of an object? 3. Without a parachute, a golf ball falls more quickly than a soccer ball. With a parachute, the soccer ball falls more quickly. Why?

Q: 1)A person jumps from a wall and lands stiff-legged. Which statement best explains why the person is…

A: (1) The expression for Newton's 2nd law is given as, F=ma Since the mass of the person remains…

Q: 2. Two masses were connected by a frictionless pulley and is placed in an inclined plane with…

A: Newton's first law: A body continues to be in a state of rest or a state of motion unless and until…

Q: 6. A skier wishes to build a rope tow to pull herself up a ski hill that is inclined at 15° with the…

A: As per our guidelines, we are supposed to answer only first one question in case of multiple…

Q: 13. After completing a jump. Ice skater glides across slick ice, slowed by 60 N frictional force.…

A: 13.  Given, frictional force = 60 Ncoefficient of kinetic friction , μk = 0.1 Let the mass be m then…

Q: Student Name:.... QI. What is the objective of this experiment?

A: The objective of this experiment is to calculate the value of acceleration due to gravity.

Q: 0. You stand on a scale riding in an elevator at a constant upwards acceleration of 43g (13.07…

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Q: 4. A parachutist reaches terminal speed when? a, Her weight goes to zero b. The force of air…

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Q: A race car travels 76 m/s around a circular track of radius 159 m What is the magnitude of the…

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Q: 32. Kinetic friction VARIES also like static friction. A. True B. False C. It depends   45. A…

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Q: 2. A 175-kg roller coaster car is supposed to make a vertical loop with a diameter of 13.5 m, with…

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Q: Which of the following statements are true regarding an object in freefall?  You can ignore air…

A: A.All object fall at the same acceleration g=9.80 m/s2 regardless of their massas ,…

Q: kg airplane accelerates upwa ne by the air. Make a quantita

A: Given: To find the lift force exerts and draw a quantitative force diagram as,

Q: 1. A person is standing at rest inside his room. Does the first law of motion suggest that the…

A: Explanation: 1. Newton’s first law of motion suggest that objects at rest will stay at rest and…

Q: Suppose you have a 132-kg wooden crate resting on a wood floor. (?k = 0.3 and ?s = 0.5)   a. What…

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Q: A 15 N weight and a 3.5 N weight are dropped simultaneously from a height h= 3.3 m above the ground.…

A: Assume weight W1=15 N and weight W2=3.5 N are dropped simultaneously from same height h=3.3 m from…

Q: What will be the acceleration of an object with lower inertia? a. An object will have a lower…

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Q: A child standing on the edge of a sheer cliff wall throws a rock down towards the ground below. The…

A: Given data as per the question speed =15 m/s  Angle =780

Q: In short-track speed skating, the track has straight sections and semicircles 16 m in diameter.…

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Q: Assuming negligible atmospheric friction, a launched projectie has a parabolic path, as shown above.…

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Q: . There are about 160,000 road accidents in Canada every year. According to the Transportation…

A: (a) During collision of two vehicles  vehicle gets stopped instantly but our bodies remain in motion…

Q: For items 1 to 4 choose only ONE CORRECT ANSWER. No need for explanations. 1. In which of the…

A: 1.  A) Travelling through space in an accelerating rocket will feel weight. Since it is an…

Q: A pig is hanging from a string and moving in a horizontal (conical) circle. A. Describe which forces…

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Q: Two asteroids at rest are separated by 2.0 x 10² m. The mass of each asteroid is 1.0 x 10¹ kg. a.…

A: Given : r=2.0*102m m1=m2=104kg

Q: Body falls vertically. Its initial speed is zero and its fall duration is 2 min. The mass of the…

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Q: An astronaut on the Moon simultaneously drops a feather and a hammer. The fact that they land…

A: Introduction: According to Newton's law of gravity, two massive bodies exert a force of attraction…

Q: when she is on earth but only 3.24 N when she is at the surface of an asteroid. The acceleration…

A: Weight is product of mass and acceleration due to gravity.  W=mg At earth acceleration due to…

Q: 7. In the setup shown above, if m, = 2.0 kg and the coefficients of static and kinetic friction…

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Q: 1. An elevator cab that weighs 27.8 kN moves upward. What is the tension in the cable if the cab’s…

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Q: of gravity increases, escape speed. A. Increases B. Decreases C. Remains the same

A: Escape velocity is the minimum velocity with which object thrown upward so that it crosses…

Q: What is his terminal speed if he falls feet first? Use p = 1.2 kg/m³ for the density of air at room…

A: Given that:-Mass, m=81 kgA rectangular box with dimension=24×47×170 cmDrag coefficient is…

Q: A 2.0-g feather and a 9.0-kg bowling ball are free falling in vacuum at the surface of the earth. If…

A: Given data:  A feather and a bowling ball are falling freely in vacuum at surface of the earth…

Q: 1. A rollercoaster car with a total weight of 500 kg entering Aa loop with a velocity of 35 m/s. The…

A: mass (m) = 500 kg velocity (v) = 35 msradius (r) = 10 m

Q: Two objects are dropped from a tall cliff: a sheet of paper and a ball made of a crumpled sheet of…

A: Given data-  Two objects are dropped from a tall Cliff ; a sheet of paper and a ball made of a…

Q: Suppose you are flying in an airplane (7500 kg) at an altitude of 11km above the Earth's surface. a.…

A: ....

Q: 1. A 60.0 kg skydiver is falling through the air (parachute opened). At one point, the acceleration…

A: mass of skydiver,m=60 kg acceleration due to  gravity ,g=10 ms-2 Net acceleration ,a =4.6 ms-2 Force…

Q: 4. What is free fall? How is it C different than movement in answers.

A: Given Here we have to give the answer of free fall motion and reason how motion along x-axis…

Q: A rock is dropped from 20 feet above the surface of the Earth. Which of the following is true? a.…

A: Given quantities: height from which a rock is dropped (H) = 20 feet initial velocity (u) = 0…

Q: A Christmas light hangs on a series of strings as shown in the figure. The tension on string a, Ta,…

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Q: 1. At an amusement park there is a ride in which cylindrically shaped chambers spin around a central…

A: Given data:  Speed (v) = 4.0 m/s2 Mass (m) = 83 kg Force (F) = 565 N Required:  The radius of the…

Q: A car with a mass of 1500 kg starts to slide while traveling at a speed of 8m /s on a 35 m radius…

A: Given, Mass m = 1500 kg             Speed v = 8 m/s              Radius r = 35 m…

Q: The term shown in the picture is called an a. angular acceleration b. coriolis acceleration c.…

A: Given, Type of acceleration

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?”