Underline the statements you think are true: o Gravity depends on the material of the objects. o Gravity is not a force because it can't move objects. o Gravity is a force because a force is a push or a pull.

Q: An object under the influence of gravity, and gravity only, can be described by what type of motion?

A: When a body is under the influence of gravity only, then it is said to be under free fall.

Q: A 1000 kg car traveling at 30 m/s crashes into a wall and come to rest in a distance of 2.5 m.…

A: Given that mass of the car and initial velocity of the car and also given the final velocity of the…

Q: The force of gravity between two objects is always_ attractive O greater on the more massive object…

A: According to Newton's law of gravitation, every object in the universe attracts the other object…

Q: If the gravitational field of Earth were to increase, would a fish float to the surface, sink, or…

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Q: You are in an elevator standing on a scale. The scale reads 486N. You feel a change in the…

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Q: A 8.0 x 10* kg spaceship is at rest in deep space. Its thrusters provide a force of 1200 kN. The…

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Q: A box filled with appliances rests on a floor. Only gravity and the support force of the floor act…

A: The free body diagram of the box is given below.

Q: Why is it called normal force?

A: Normal force

Q: O. The value of gravity on the moon is 1.6 m/s/s What is the weight of a 75 kg astronaut on the…

A: Given data: Gravity on the moon, gM=1.6 m/s2 Mass of the astronaut, m=75 kg

Q: person stands on a scale inside an elevator at rest. The scale read 800N. What is the person mass?

A: Reading of scale when a person is standing inside a stationary elevator = 800 N

Q: Newton's universal law of gravitation states that every particle in the universe attracts every…

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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: The medical effects of gravitational force is O varicose veins & skin O brain & skull O varicose…

A: Gravity or gravitational force is the force of attraction between any two objects in the universe.

Q: Brandon stands at rest with both feet on a scale that reads 638 N. When he gently lifts one foot,…

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Q: In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging…

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Q: Complete the following statement: The center of mass is a. the region of an object where the density…

A: let an object is made up of 2 particles , m and M , placed at positions x1 , x2.

Q: Jack and Jill are walking with a 5.00-kg plank of wood on their heads. On top of the plank is a…

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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: An 60 kg astronaut travel from earth to moon, where the gravity of moon is 1.6 m s 2. What is the…

A: The mass of a body or an object is same irrespective of the body being in earth or moon. The mass of…

Q: A 10-kg weight is suspended by a rope from a ceiling. If a horizontal force of 5.80 kg is applied to…

A: Suspended weight , W = 10 kg  Horizontal force , F =5.8 kg  To find = angle made with the vertical…

Q: A bug on the inside of a spinning bicycle tire will experience a real gravitational force. O True O…

A: Given a bug is inside a tyre which is spinning.We have to define whether the bug may experience a…

Q: A force from water which pushes a body upward against gravity is known as

A: When an object is placed in a water, the water exerts an upward force we call it buoyant force. The…

Q: what is mutual force

A: Force is a vector quantity which has both directions and magnitude .

Q: The gravity of Jupiter is about 3 times what it is on Earth.  If an object’s mass is 180 kg on…

A: Given data:- The gravity of Jupiter is about 3 times what it is on Earth object’s mass is 180 kg on…

Q: Standing on your bathroom scale in an elevator, you are shocked to see that you weigh 1.5 times your…

A: Let the weight of the person is W=mg Increased weight is WI=1.5mg

Q: An astronaut pushes off the side of the space station and does not stop until his rope tied to the…

A: The third law state that all forces  between two objects exist in equal magnitude and opposite…

Q: A 50.0?? woman inside an elevator is standing on a scale. How will the acceleration of the elevator…

A: When a body is an elevator, and it is moving with some acceleration, its weight on weighing machine…

Q: When launching a satellite into space, the energy required is when using an assumption for constant…

A: The gravity applied on the satellite will be same from both ways. The energy required will be same…

Q: tanding on a weighing scale, a 50-kg person is inside an elevator. What would the scale read if the…

A: Given Mass of person is m=50 kg Acceleration due to gravity is g=9.80 m/s2 Acceleration is a=0.25 g

Q: In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging…

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Q: Referring to the Newton's law of universal gravitation, if a person has a weight of 700N on earth,…

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Q: A rocket expels 1.2 x 10^3 kg of gas each second at a speed of 5.0 x 10^4 m/s. Will the thrust…

A: Gravitational force or weight of the rocket W= 5.8 x 107 N Mass flow rate of the gas m=1.2 x 103…

Q: In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging…

A: Given: The angle of rider from the horizontal is 15°. The tension in the rope is 2300 N. The angle…

Q: Question 37 Which two variables influence the gravity of one body on another? Select all that apply…

A: Answer :-  mass   radius  Mass and radius are the two variables influence the gravity of one body on…

Q: A pig of mass 500kg stands in an elevator. The normal force exerted on the pig by the elevator floor…

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Q: Forces pushing up on a submerged object are greater than the forces pushing down on it.

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Q: In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging…

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Q: what is an example of something that has a lot of volume but not a lot of mass?

A: Any body that has a lot of volumes doesn't mean it will have a lot of mass.

Q: What is the net force

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

Q: A snowboarder flies off a ramp and is in midair. Is the snowboarder weightless currently? Why or why…

A: The phenomenon of weightlessness occurs when there is no force affecting the body. When a…

Q: The actual weight of a body is always: O greater than the apparent weight O smaller than the…

A: Weight of the body is the force with which it is attracted towards the center of the earth.

Q: What does the inverse square law tell you about relationship between force and distance?

A: The inverse square law states the force is inversely proportional to the square of distance between…

Q: If you tethered a space station to the earth by a long cable, you could get to space in an elevator…

A: Mass of the cable is given by -  m =ρV=ρAl Weight of the cable -  W=mg=(ρAl)g

Q: Astronauts on the orbiting space station are weightless because... a. there is no gravity in space…

A: An object that continuously orbits the Earth, is said to be in free fall.

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?”