How can skin drag friction be reduced?
Friction drag can be reduced by delaying the point at which laminar flow becomes turbulent. This can be accomplished by smoothing the exposed surfaces of the aeroplane by using flush rivets on the leading edges and through painting, cleaning, waxing, polishing or the application of surface coatings.
What did Galileo experiment prove?
According to the story, Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle’s theory of gravity (which states that objects fall at speed proportional to their mass).
Who dropped a feather and a hammer together?
Commander David Scott
Can you fall off of the moon?
NASA lists the escape velocity of the moon at 2.38 km/s. A human can only jump up at a speed of < 5 m/s. So no, no jumping off the moon and into space without some form of propulsion, like a rocket. You’d have to be going at least that fast to escape its gravity and float into space.
What would happen if an astronaut on the moon dropped a hammer and a feather at the same time from the same height?
The moon has no atmosphere. Predict what would happen if an astronaut on the moon dropped a hammer and a feather at the same time from the same height. The feather and the hammer would hit the moon’s surface at the same time because there is the same time because there is no air resistance.
What happens if you drop a hammer and a feather on the moon?
In his other, a 30g falcon feather, 44 times lighter than the hammer. Sure enough, when he dropped them both from the same height at the same time, they hit the ground simultaneously — thus demonstrating Galileo’s theory./span>
Would a hammer fall faster than a feather on the moon?
On the moon there is no air resistance so both your hammer and feather experience the same amount of acceleration and hit the ground at the same time. On the moon there is no air, and no drag, and a hammer and a feather will fall at the same speed.
What happens when you fall on the moon?
Acceleration due to gravity on the moon is 1.6 m/s 2. This means that when you fall, your velocity increases by 1.6 m/s every second. You’ll fall slower than you would on Earth, but your velocity will still increase to fatal speeds. After a ten second fall, you’ll hit the ground at about 60 km/h.
Do heavier objects fall faster on the moon?
In a vacuum (on the moon, say), all objects fall at the same speed, even if one is heavier than the others./span>
Do objects fall slower on the moon?
The Moon’s surface gravity is about 1/6th as powerful or about 1.6 meters per second per second. The Moon’s surface gravity is weaker because it is far less massive than Earth. You will notice that the objects fall slowly, because their acceleration toward the surface is only 1/6th what it would be on Earth.
What would happen if you dropped a ball on the moon?
The answer to this question is simple. The ball would fall much more slowly than on Earth. Every aspect of the ball’s fall would be slower. It would pick up speed in the downward direction more slowly.
What happens if you throw a ball in space?
If one throws it in the direction of motion, it will speed up and go further out, causing the orbital period to lengthen. It would be at the same spot later then the station. Throwing the opposite direction will cause it to slow down, lowering it’s orbital period, and the ball will arrive first at the spot.
Can you accelerate forever in space?
You can keep accelerating as long as you have the means. Due to the distorting effects of the theory of relativity on space and time, you can keep accelerating at a constant acceleration forever, and yet never hit the speed of light.