What is the net force on the apple when you release it to fall in the absence of air resistance?
gravitational force
Which of the following objects is considered to be in free fall?
Which of the following objects is considered to be in free fall? A hammer that is tossed upward by an astronaut on the moon. An object is in free fall when the only force acting on it is the force of gravity. An object is dropped from the top of a building and hits the ground 3 seconds after it is released.
What is the difference between drag force and air resistance?
By definition, air resistance describes the forces that are in opposition to the relative motion of an object as it passes through the air. In terms of aerodynamics and flight, drag refers to both the forces acting opposite of thrust, as well as the forces working perpendicular to it (i.e. lift).
What is the net force when it encounters 15 N of air resistance?
10 N
What average net force is required to bring a 1500 kg?
The net force required is then SF = ma = (1500 kg)(-7.1 m/s) = -1.1 X 10^N.
What is the average force of air resistance?
The amount of air resistance an object experiences depends on its speed, its cross-sectional area, its shape and the density of the air. Air densities vary with altitude, temperature and humidity. Nonetheless, 1.29 kg/m3 is a very reasonable value.
What will happen if we through a hammer and feather together if the air resistance is ignored?
A hammer and a feather will fall with the same constant acceleration if air resistance is considered negligible. This is a general characteristic of gravity not unique to Earth, as astronaut David R. The acceleration of free-falling objects is therefore called the acceleration due to gravity.
How long does it take something to fall on the moon?
about 5 days
Can you break your legs on the moon?
This raises the question: How far could one fall on the moon before sustaining injuries? In an interview with a biomedical engineer, it is said that 4,000 Newtons of force would break a femur.
Could you throw a rock off the moon?
If you want to throw a rock as far as possible on the moon, you should do it as soon as you arrive from Earth, while your muscles are still accustomed to Earth conditions.
What would happen if you threw a ball on the moon?
No, the moon has its own gravity, while it is much less than earths (about 1/8th) it still would take a rocket engine to accelerate the ball to a speed so it would escape the Moons gravity, at which point the ball would ‘fall’ into the Earths atmosphere and be vaporized on re-entry.
Can you throw a ball on Mars?
You can hit a ball more than 3 times further. I say “more than” three times because the air drag is so much less on mars, (even without lift from a spinning ball.) You can hit 1000 foot home runs on Mars.