Why does a person in free fall experience weightlessness, while a person falling at terminal velocity does not?

Q: Discuss weightlessness in space.

A: The astronaut in space felts weightlessness. In this astronaut feel zero weight of herself or…

Q: Is the force of gravity stronger on piece of iron than on the piece of wood if both have the same…

A: The force of gravity between the two object masses is,From the above expression, it is clear that…

Q: How to prevent problem of weightlessness?

A: Weightlessness is a condition during free fall where gravitational effect is cancelled by inertial…

Q: If air drag can be ignored, at what point in its trajectory does a batted baseball have its minimum…

A: Ball will have minimum speed at the highest point of the trajectory. This is because, at highest…

Q: What is the force of gravity between two 1000 kg cars separated by a distance of 20 m on a highway?

A: The gravitational force between two objects can be obtain using the following equation,…

Q: If you were in a freely falling elevator and you dropped a pencill, it would hover in front of you.…

A: It depends upon frame of reference the person. If you are falling along with the elevator, Force of…

Q: How come in free fall you feel weightless even though gravity is pulling down on you (disregarding…

A: Explanation- Since, gravity acts on any object towards the center of the earth. it means on the…

Q: Discuss briefly some problems of weightlessness.

A: Weightlessness is the complete or absence of the sensation of weight. In response to an extended…

Q: suppose you go from the earth to a planet where the acceleration of the gravity is 2.5m/s2 , on the…

A: The weight the person on the Earth is

Q: For orbits of greater altitude, is the period longer or shorter?

A: Kepler’s third law of planetary motion gives,

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: ut experiences weightlessness in

A: An astronaut experiences weightlessness in deep outer space

Q: Gravitational force acts on all bodies in proportion to their masses. Why, then, doesn't a heavy…

A:

Q: When you stand on Earth, your feet push against it with a force equal to your weight. Why doesn’t…

A: By the Newton second law, the acceleration of anybody can be calculated as,  Here, F is net force…

Q: Can your weight change depending on where you are standing on the earth?

A: Weight is defined as the product of mass and the acceleration due to gravity.

Q: Gravitational force acts on all bodies in proportion to their masses. Why, then, doesn't a heavy…

A: Given,Two masses which masses are m1 and m2 where (m1 > m2) .AccelerGiven,Two masses which masses…

Q: To begin your wingsuit flight, you step off the edge of a high cliff. Why are you then momentarily…

A:

Q: What is NEWTON’S LAW OF GRAVITATION?

A: Newton’s law of gravitation: According to the Newton, in the universe two object attracts each other…

Q: Give vector form of Newton's law of gravitation.

A: The vector form of the Newton’s law of gravitation is given by,

Q: Can we survived without gravity?

A: The atmosphere and water held due to gravity . Without gravity the atmosphere disappear.

Q: How much force in Newton, must a 20,000 kg jet plane develop to achieve an acceleration of 1.5 m/s2?

A: Mass of the jet plane, m = 20000 kg Acceleration of the jet plane, a = 1.5 m/s2   Applying the…

Q: What is the force of gravity between two 1045 kg cars separated by a distance of 43 m on a…

A:

Q: Your friend says that the primary reason astronauts in orbit feel weightless is that they are beyond…

A:

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

A: Weight and mass

Q: Newton tells us that gravitational force acts on all bodies in proportion to their masses. Why,…

A: To conclude: Why doesn’t a heavy body fall faster than a light body?

Q: A tomato is thrown upward. As it rises, the gravitational force does

A:

Q: How does the force of gravity between two objects change when one of the masses is quadrupled?

A: The Gravitational force between two masses is given by,          F = Gm1m2r2 here           m1 and…

Q: How could an astronaut in a space shuttle 'drop' an object vertically to Earth?

A: if an object has to fall vertically down wards towards the Earth then it must not possess any…

Q: Why do passengers in high altitude jet planes feel the sensation of weight while passengers in an…

A: Passengers in an orbiting space vehicle are essentially falling towards the Earth. It’s being pulled…

Q: By how much does the gravitational force that the Earth exerts on you change if you climb a palm…

A: Given data: A person climbs a palm tree.   Providing the man is pulling himself up at constant speed…

Q: How much does a 70-kg astronaut weight in space, far from any celestial body? What is her mass at…

A: Mass of the astronaut is m = 70 kg

Q: if you drop a feather on and a steel hammer at the same moment, they should hit the ground at the…

A: The second equation of motion is  where, s is the distance, u is the initial velocity, t is the…

Q: Does your desk exert any gravitational force on you? why?

A:

Q: What is the main difference between mass and weight?

A: Mass of an object is always remains constant everywhere.

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.