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Questions and answers about sports

How does weight influence your speed when descending?

5 min read

Asked by: Alka Chambers

How does weight affect rate of descent?

A change in weight does not affect the descent angle. With an aeroplane flying at its best L/D ratio, an increase in weight will increase the FCW, increasing the speed down the slope, and therefore the rate of descent, but not the descent angle.

Do heavy things go downhill faster?

Many people expect that a heavier wheel will naturally roll downhill faster than a lighter one. But when an object rolls downhill, its speed depends not on the weight of the wheel, but on where the weight is located. When weight is located far from the center of the wheel, the wheel is harder to get rolling.

What effect does weight have on speed?

Weight affects speed down the ramp (the pull of gravity), but it’s the mass (and friction) that affects speed after a car leaves the ramp. Heavier cars have more momentum, so they travel further, given the same amount of friction.

Does weight make a difference in speed?

There’s certainly evidence that weight affects speed: An American College of Sports Medicine study shows that a 5 percent reduction in weight improved 3K times by 3.1 percent, while a 10 percent reduction improved times by 5.2 percent, and experts say that this difference becomes greater as your distance increases.

Does weight Affect plane speed?

The higher our weight is, the higher maneuvering speed can go, which is interesting, but the other effect is if we go overweight, we have the ability to then cause damage to the aircraft.

Why does an aircraft descend quicker when it is lighter?

Because an aircraft is restricted to a maximum speed during descent, the heavier aircraft has to maintain a lower rate of descent than a lighter aircraft; otherwise, it would overspeed. Remember, heavier aircraft have a greater momentum and this weight driven momentum will produce a greater speed in vertical dive.

Why do heavier riders descend faster?

Heavier riders can descend faster than light riders because heavier riders don’t have significantly more volume/surface area than their lighter counterparts, despite possibly major differences in weight.

Why do heavier objects fall faster downhill?

Acceleration of Falling Objects

Heavier things have a greater gravitational force AND heavier things have a lower acceleration. It turns out that these two effects exactly cancel to make falling objects have the same acceleration regardless of mass.

Will a heavier person fall faster?

No, heavier objects fall as fast (or slow) as lighter objects, if we ignore the air friction. The air friction can make a difference, but in a rather complicated way. The gravitational acceleration for all objects is the same.

Are lighter people faster?

When you lose weight it’s easier for your body to deliver oxygen throughout your body. And when your body can deliver oxygen to our muscles more efficiently, you’re able to run at a faster speed.

Does a heavier bike slow you down?

Also, if you’re an overweight cyclist it’s not just about the weight, it’s about surface area. If you’re carrying a lot more body fat you’re less aerodynamic as well. That’s an additive effect: not only is your power-to-weight ratio lower, but you’ve also got more drag, so that’s going to make you slower as well.

How much faster will I bike if I lose weight?

If I lose 5 pounds, how much faster will I get? That depends on a number of variables, including terrain. “On the flats, simply losing five pounds won’t have a huge impact, as you’re looking at a time savings of roughly 10 to 15 seconds [for an hour-long ride],” says Menachem Brodie, a Pittsburgh–based cycling coach.

How does weight affect landing?

Weight. The weight of an aircraft is one of the basic factors that determines the landing distance required by an aircraft. An increase in weight increases the stall speed of the aircraft. Stall is a reduction in the lift coefficient generated by a wing as angle of attack increases.

How does weight affect takeoff?

Increased gross weight can be considered to produce a threefold effect on takeoff performance: (1) higher liftoff speed, (2) greater mass to accelerate, and (3) increased retarding force (drag and ground friction).

How does the weight affect take off?

Normally, lift-off speed is about 15% above stall speed. Thus if weight increases -> higher stall speed, your lift-off speed increases too. As a result more time is needed (higher weight also means slower acceleration) to get to that lift-off speed and you will need more runway at the same time.

How does weight affect free fall?

The mass, size, and shape of the object are not a factor in describing the motion of the object. So all objects, regardless of size or shape or weight, free fall with the same acceleration. On the figure, we show an orbiting Space Shuttle and a space walking astronaut.

Does weight have an impact on terminal velocity?

The weight of the object does affect the air drag force on the object and, therefore, its terminal velocity.

How does weight affect force?

Heavier objects (objects with more mass) are more difficult to move and stop. Heavier objects (greater mass) resist change more than lighter objects. Example: Pushing a bicycle or a Cadillac, or stopping them once moving. The more massive the object (more inertia) the harder it is to start or stop.

Does weight affect air resistance?

No. In general weight does not affect air resistance. Air resistance depends on shape. If both feathers are the same shape their drag properties (“air resistance”) will be the same.

Does a heavier object fall faster?

Given two objects of the same size but of different materials, the heavier (denser) object will fall faster because the drag and buoyancy forces will be the same for both, but the gravitational force will be greater for the heavier object.

Why do heavier objects fall faster than lighter ones?

Looking closer, we can determine that a heavy object has more gravitational force, but also less acceleration, and a lighter object has less gravitational force but greater acceleration. Gravity and acceleration tend to cancel each other out, so these objects still fall at the same rate.