Common questions

What is terminal velocity weight?

What is terminal velocity weight?

Terminal velocity occurs when the air resistance (sometimes called “drag”) force equals the weight of the falling object. This means that: the object is falling with a constant velocity – its acceleration is zero. heavy objects will have a higher terminal velocity than light objects.

What is terminal velocity short answer?

terminal velocity, steady speed achieved by an object freely falling through a gas or liquid. An object dropped from rest will increase its speed until it reaches terminal velocity; an object forced to move faster than its terminal velocity will, upon release, slow down to this constant velocity.

What is the unit for terminal velocity?

Vt is terminal velocity, in (m/s) g is acceleration of gravity, in (m/s2)

How do you find the terminal velocity of a car?

Use the terminal velocity formula, v = the square root of ((2*m*g)/(ρ*A*C)). Plug the following values into that formula to solve for v, terminal velocity. g = the acceleration due to gravity. On Earth this is approximately 9.8 meters per second.

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What is terminal velocity based on?

Terminal velocity is the maximum velocity (speed) attainable by an object as it falls through a fluid (air is the most common example). It occurs when the sum of the drag force (Fd) and the buoyancy is equal to the downward force of gravity (FG) acting on the object.

What is the terminal velocity of a squirrel?

If we do the math (and having changed the units correctly), the result gives us 10.28 m/s, about 23 mph. The reason for this is because a squirrel has a large area/mass ratio. This means that gravity does not pull on it with too much force but relatively large aerodynamic resistance will be generated.

What are some examples of terminal velocity?

Terminal Velocity Examples

Falling object Mass Terminal velocity
Skydiver 75 kg 60 m/s
Baseball (3.66cm radius) 145 gm 33 m/s
Golf ball (2.1 cm radius) 46 gm 32 m/s
Hail stone (0.5 cm radius) .48 gm 14 m/s

How do you find terminal velocity time?

By defining the time constant as τ=mb and using the definition of the terminal velocity, the time evolution of the velocity simplifies to v(t)=vmax[1−e−t/τ]. The position, if desired, is found easily enough by performing another integration: y(t)=∫vdt=vmax∫(1−e−t/τ)dt.

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Can a cat survive a 15 foot fall?

While cats have been known to fall from over 30 stories and survive, it’s not very common or thoroughly researched. That being said, studies suggest cats can fall as far as 20 stories, over 200 feet, and survive with little to no injuries.

Do cats really have 9 lives?

While cats don’t actually have nine lives, many humans believe this myth because cats are able to survive falls that would surely be lethal to most humans. When they fall, cats have the natural ability to twist their body around and land on their feet — even when they are dropped from very high places.

What is terminal velocity for an elephant?

Our atmosphere on earth goes up to around 450 miles above sea level, so if you dropped the elephant from 100 miles up, it would already have resistance in its acceleration. After dropping for about 20-30 seconds from that height, it would be hitting terminal velocity at around 140mph, perhaps even slower.

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What is the terminal velocity of a cat?

For instance, an average-sized cat with its limbs extended achieves a terminal velocity of about 60mph (97km/h), while an average-sized man reaches a terminal velocity of about 120mph (193km/h), according to the 1987 study by veterinarians Wayne Whitney and Cheryl Mehlhaff.

What is the terminal velocity with no acceleration?

With no acceleration, the object falls at a constant velocity as described by Newton’s first law of motion. The constant vertical velocity is called the terminal velocity . Using algebra, we can determine the value of the terminal velocity.

What is the terminal velocity of an 80 kg skydiver?

Example 2: An 80 kg skydiver is plunging towards the Earth face down and has already achieved terminal velocity of 66 m/s with his current cross-sectional area of 1m 2 and a drag coefficient of about 1.00.

What is the drag coefficient in terminal velocity calculator?

The drag coefficient is undoubtedly the hardest thing to estimate in the terminal velocity calculator input. Some example drag coefficients are 1.0 for a cube, 0.5 for a sphere and 0.04 for an aerodynamic wing. A coefficient of drag of 0.294 should work relatively well for a human body falling face down.