Guidelines

Can an object be accelerated to the speed of light?

Can an object be accelerated to the speed of light?

Only massless particles, including photons, which make up light, can travel at that speed. It’s impossible to accelerate any material object up to the speed of light because it would take an infinite amount of energy to do so.

What happens to the speed of a falling object the longer it falls?

Speeding up While Falling Down Gravity causes an object to fall toward the ground at a faster and faster velocity the longer the object falls. In fact, its velocity increases by 9.8 m/s2, so by 1 second after an object starts falling, its velocity is 9.8 m/s.

Does a falling object continue to accelerate?

A falling object will continue to accelerate to higher speeds until they encounter an amount of air resistance that is equal to their weight. Since the 150-kg skydiver weighs more (experiences a greater force of gravity), it will accelerate to higher speeds before reaching a terminal velocity.

READ:   What happens if a tank flips over?

Will a falling object accelerate infinitely or will it eventually fall at a constant velocity?

Nothing. As long as there is a net force forcing on the object, the object will accelerate. The acceleration will be given by the Newton’s second law. As long as there’s a non-zero net force acting on the object, it will have a non-zero acceleration and therefore it will continuously change its velocity: →F=m→a.

Can something fall at the speed of light?

No. Any object during free fall in any medium can’t be reached to the velocity of light. During the free fall, every object achieves Terminal Velocity which doesn’t increase further due to gravitational force and is much less than the velocity of light.

What is the velocity of a dropped object after it has fallen for 12 seconds?

The answer is 117.6ms .

What determines how fast an object falls?

A: How fast something falls due to gravity is determined by a number known as the “acceleration of gravity”, which is 9.81 m/s^2 at the surface of our Earth. Basically this means that in one second, any object’s downward velocity will increase by 9.81 m/s because of gravity.

READ:   Are humans the only animals to work together?

Why do objects fall at the same speed?

The gravitational acceleration g decreases with the square of the distance from the center of the earth. So all objects, regardless of size or shape or weight, free fall with the same acceleration. In a vacuum, a beach ball falls at the same rate as an airliner.

Does a ball take longer to go up or down?

The answer is: Down. Only if there was no air resistance would the up and down times be the same.

What is the acceleration of the ball at its maximum height?

At maximum height, the ball is momentarily at rest as it changes its direction of motion before accelerating towards the surface of earth. Hence at maximum height the magnitude of velocity is zero and acceleration is same as the acceleration due to gravity ie. 9.8 m/s^2.

What is the speed of an object falling towards the Earth?

– Answers The speed of an object falling towards the earth will increase because the gravitational force on the object will accelerate it at a rate of 9.8 m/s² (32.2 ft/sec2).

READ:   Can you be asexual and fantasize?

Does acceleration increase when an object falls?

So long as the acceleration does not fall below 0m/s^2 the object will continue to increase in speed. When a object falls what does it reach because of air resistance? When an object falls, air resistance causes it to reach a terminal velocity.

Can an object with infinite mass reach the speed of light?

That’s why, inorder to reach the speed of light, one will have to provide infinte energy which will result with the object having infinite mass to attain light speed. Since free fall is due to gravity, it cannot be expected to go on infinitely because it has to “fall” somewhere.

Why do heavy objects fall slower than light objects?

This experimentally determined fact is unexpected, because we are so accustomed to the effects of air resistance and friction that we expect light objects to fall slower than heavy ones. A hammer and a feather will fall with the same constant acceleration if air resistance is considered negligible.