Free fall is motion in which gravity is the only force acting. (a) Is a skydiver who has reached terminal speed in free fall? (b) Is a satellite above the atmosphere that circles Earth in free fall?

Q: If gravity pulls you down toward the center of Earth with a force of 400 N, how much upward force…

A: The force of gravity acting on the person towards the Earth’s center is given as,

Q: If you release a ball while inside a freely falling elevator, the ball remains in front of you…

A:

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: Which object has the most inertia? 1. A 0.001-kilogram bumblebee traveling at 2 meters per second 2.…

A:

Q: Which has greater monetary value, a newton of gold on Earth or a newton of gold on the Moon?

A: Weight is,

Q: Inertia is a measure of an object's ________________. a.gravity.          b. weight.            c.…

A: To explain : inertia is a measure 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: The force needed to produce an accelerat of 6 m/s in a ball of mass 4 kg will be (a) 24 N (b) 30 N…

A: Acceleration of ball = 6 m/s2  Mass of ball = 4 kg

Q: Consider a vertically launched projectile when air drag is negligible. When is the acceleration due…

A: When a projectile is launched vertically, it is only acted upon by gravity since air drag is…

Q: What is the force on a 1000 kg elevator that is falling freely at 9.8 m/s ?

A: Given data The mass of the elevator is m=1000 kg The accleration during the free fall is a=9.81 m/s2…

Q: When a man is standing on a scale in an elevator that is accelerating upward, the scale reading will…

A: When a man is standing on a scale in an elevator that is acceleration upward , the scale reading…

Q: What is the weight of a box that has a mass of 72.8 kg if it were placed of the Moon, whose…

A: Mass of box = M = 72.8 kg  Gravitational attraction of moon, g' = 0.17 ( gravitational attraction of…

Q: A bowling ball has a mass of 6 kilograms. A tennis ball has a mass of 0.06 kilogram. How much…

A: InertiabowlItennis=mbowlmtennis

Q: The acceleration due to gravity on a planet is 9.2 m/s2. The mass (in kilograms) of a book that…

A: Let g be the acceleration due to gravity on the planet, W be the weight of the book measured on the…

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: Suppose you were to throw a ball in the air, and it starts to fall. The ball has a mass of 1kg, find…

A: According to Newton's second law F = ma

Q: Who among the choices will be able to lift the weight?

A: To solve this we find if the moment generated by the muscle at the joint is greater than or equal to…

Q: A 60 kg man is standing on a scale in an elevator moving up at 2 m/s^2, what is his weight? What is…

A:

Q: If justin has a mass of 50kg on earth what is his weight on earth and on the moon?

A: Given: Mass, m=50 kg Required: Weight on earth. Weight on the moon.

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: Find the mass of an object (in kg) that weighs 2 kN at a height of 1800 km above the earth’s…

A: Given: W = 2 KN = 2000 N h =1800 km

Q: What is the weight of a box that has a mass of 54 kg if it were placed of the moon, whose…

A: Given data- mass of box m=54 kg gravitational attraction on earth gearth=9.81 m/s2 so gravitational…

Q: What measures the weight of a person in an accelerating lift or in a spacecraft?

A: Weight is the resultant downward force experienced by a body or a person. The value of the resultant…

Q: A student has a mass of 25 kg. If he stands on a scale in an elevator that is accelerating downward…

A: mass of student (m) = 25 kg Acceleration (a) = 2 ms2

Q: Since an object weighs less on the surface of the Moon than on Earth 's surface, does it have less…

A:

Q: A person’s weight on the Moon is directly proportional to their weight on Earth. A person weighing…

A:

Q: do the two masses have the same acceleration

A: Acceleration a = Force /mass

Q: 800 kg 10 m/s 80 m 20m 35 m

A:

Q: How does the force of gravity on a raindrop compare with the air drag it encounters when it falls at…

A: The force of gravity acts on the raindrop in vertically downward direction whereas the air drag…

Q: You jump up into the air. Which of the following is propelling you up into the air? Gravity Your…

A:

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

A: Let the mass of a body is m  then the weight will be w=mg  ( g is the acceleration due to gravity)…

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

A: An object which is projected by some means and continuous its motion in the projection by its own…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!