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What is a situation when you might travel at a high velocity but with a low acceleration?
Wiki User
∙ 7y ago
"Acceleration" simply means how quickly velocity changes. Thus, such a situation could arise, for example, whenever you are riding in a car - most of the time the car won't be accelerating. If that isn't fast enough for you, in airplane travel the situation is similar. The Earth's movement around the Sun - at about 30 km/second - is even faster, and the velocity doesn't change quickly. In this case, it takes half a year, to change from 30 km/second in one direction, to moving at 30 km/second in the opposite direction. Since the orbit is almost circular, you can calculate the actual acceleration as speed squared / radius (where the radius is the distance from Earth to Sun in this case). The result of the calculation, in this case, is about 6 mm/second squared - a tiny fraction of Earth's gravitational field, for example.
Wiki User
∙ 7y ago
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How gravity and air resistance are related to an object's terminal velocity?
Gravity and air resistance (drag) are the two opposing forces acting on the falling body. Gravity causes the object to accelerate (fall faster) while the air resistance causes the object to decelerate (fall slower). At a certain velocity called the terminal velocity these two forces are in balance and there is no change in falling speed.
How do scientists generate hypotheses?
two ways I know of: contemplation, observation 1. if you see lights come on and go off when someone touches something on the wall, you might hypothesize a relation between the action and effect 2. lacking observation, some brilliant people apply all that they know about an issue and "jump" to a conclusion ie a hypothesis. One example might be by knowing the established relation F=ma (force = mass times acceleration). One might hypothesize that a similar relation might hold for energy (and it does, Einstein's E=mc^2 energy=mass times square of a velocity )
When lions prey on a herd of antelope some antelope are killed and some escape which part of Darwins concept of natural selection might be used to describe this situation?
Survival of the fittest would be used to describe this situation.
What is an example of terminal velocity?
An example would be "any object that is moving through the air, water or other substance at a rate such that it cannot possibly go faster without additional force being applied." "Terminal Velocity" in dropping a rock from an airplane might mean "the fastest the rock can possibly fall on its own." Once the rock reached that velocity, it would not be able to go faster despite that it had accelerated to that point without additional force (or increased gravity) being applied to the rock. rock from plane when force down = force up force down = mg (newtons) force up = force of air resistance (velocity ^2* drag coefficient ) newtons. you can use known terminal velocity to calculate drag coefficient if mass is known.
Why does it take more force to accelerate a more massive object?
A force will not increase or decrease an acceleration. If the force is constant, it will cause a constant acceleration. It may increase or decrease the speed. The change of velocity - for the same force - is the same, whether the speed is increasing, decreasing, or just changing direction.
Effect of acceleration due to gravity?
Acceleration simply refers to the rate of change of a velocity. You might say that the effect of an acceleration - any acceleration - is therefore a change of velocity.
When a cart is changing direction is it acceleration?
Consider a graph paper with Axis X and Y. Cart travel in X direction but suddenly, the cart change direction and so it must reduce velocity on X and increase velocity on Y. Net velocity might be the same but small acceleration and deceleration is apply in 2 dimension motion.
What is speed at any given moment?
This is normally referred to as "instantaneous velocity" although if there is no change in velocity with respect to time - that is, no acceleration or deceleration - you might simply refer to it as "velocity".
How do you find time with only distance and acceleration when Vi and VF are 0?
The amount of time it would take an object to travel a distance with constant acceleration depends on its initial velocity, according to the equation: d = vit + 0.5at2 Where d is displacement, vi is initial velocity, t is time, and a is acceleration. Note: if the object starts from rest, its initial velocity, logically, is zero.
How is it possible to be accelerating at a constant speed?
Since acceleration involves a change in velocity, and object might be accelerating even though its speed is constant.
How do you solve for acceleration when given distance and time?
you need a velocity unless its a falling object you should type in the problem statement and you might get a better answer
When Resultant velocity is calculated by using which two math functions?
The answer depends on what information you start with. For example, if you are given acceleration then you might integrate whereas if you are given displacement, you might differentiate.
When throwing a ball straight up when is the velocity zero?
The velocity is zero when t=v0/g. This comes from velocity of the ball is v=v0-gt, where v0 is the velocity which the ball is thrown with, the initial velocity. The balls v velocity is the initial velocity v0 - the gravity velocity gt. when the real velocity is zero v= v0-gt=0. solving this for t gives when the velocity is zero.
Can an object have momentum in space?
Yes. Momentum is based entirely upon mass and velocity, as shown by the equation p=mv, where p is momentum, m is mass, and v is velocity. Since an object can still have both mass and velocity in space, it can have momentum in space.
What path might an object take that involves changing its velocity?
Any path that changes direction. To keep the speed constant and change the velocity it would have to travel in a circle or something similar.
What is a force of one sport?
There is Down Hill Skiing as a sport which might use alot of forces Like: speed, acceleration, velocity, friction, position and motion. T.
Why might an elevator cable break during acceleration when lifting a lighter load than it normally supports at rest or at constant velocity?
If it was really old or moldy and wet.
