Guidelines

Why do objects get heavier as they go faster?

Why do objects get heavier as they go faster?

results if the object is moving pretty slowly—less than about 10\% of the speed of light (the speed of light is 300,000,000 meters/sec or 186,000 mi/sec). The mass of an object does not change with speed; it changes only if we cut off or add a piece to the object.

What happens when two objects of different sizes collide?

In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum).

Do heavier things roll downhill faster?

There will be a resultant force which will be proportional to the mass of the object. Hence an object with greater mass feels greater force than the other one. So even if the slope is same for both objects, a massive object moves faster through the slope than a less mass object.

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Why do lighter objects fall slower?

In a vacuum, both heavy and light objects fall at the same rate. But, often light objects, such as feathers, have more surface area, resulting in greater air resistance, and fall slower.

What happens when you throw something heavy vs When you throw something light?

This is known as Newton’s second law of motion, which we usually write as F = ma (the force is mass times acceleration). The heavy object will feel small changes to its speed (its acceleration is close to zero), while the light object will slow down a lot (its acceleration is a large negative number).

Does weight affect speed?

Weight has no effect on speed. However, weight does affect forces, which affects acceleration, which affects velocity with respect to time.

Will a heavier object accelerate faster?

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.

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How can two objects have the same momentum but different velocities?

When comparing the kinetic energy of two objects, the velocity of an object is of double importance. So if two objects of different mass have the same momentum, then the object with the least mass has a greater velocity.

Why can’t anything move faster than the speed of light?

Consider this… the speed of light is 300,000 kilometers per second (186,000 miles per second) and when an object moves at this speed, its mass will become infinite. Therefore, infinite energy will be required to move the object, which is impractical. That’s the reason why no object can move at the speed or faster than the speed of light.

Why do lighter objects fall more slowly than Heavier Things?

Because of this, the resistance from the air slows the fall of the lighter thing. But if both objects had the same ratio of mass to surface area, they would fall at the same rate. So, the only thing that makes a lighter thing fall more slowly is the resistance from the air.

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What happens to mass as an object approaches the speed of light?

As an object approaches the speed of light, its mass rises precipitously. If an object tries to travel 186,000 miles per second, its mass becomes infinite, and so does the energy required to move it.

Why do heavy objects fall to the ground at the same time?

In the absence of air friction both heavy and light objects will reach the ground at the same time. Galileo deduced this by devising clever experiments with balls rolling down inclined planes. Newton gave it his blessing by observing that a = F/M, i.e. the acceleration of an object is proportional to the force, F, on it divided by its mass, M.