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What else can I help you with?
Can speed be zero when acceleration is constant?
Speed (or velocity) can be zero during a period of constant acceleration. Take a ball thrown vertically into the air. From the time it leaves the hand, it is accelerating downwards, that is, against the direction in which it is travelling. There will come a time when the constant downward acceleration causes the ball to be stationary. This is the highest point the ball will reach and from that time onwards, the ball will begin to travel in the opposite direction, i.e. downwards. For the whole time the ball is in the air it will be accelerating downwards at a constant rate due to gravity. The velocity of the ball is changing continually and includes the moment when velocity is zero.
Why does bullit travel slow in space?
It doesn't. if a bullet were shot from earth into space and had enough acceleration to pull away from earth's gravity, it would travel indefinitely until hitting an object.
Does the body falling to the earth travel at the same speed from the very beginning of its travel?
No, the speed of an object falling to the Earth increases due to the acceleration of gravity. At the beginning, the object has zero velocity and then accelerates until it reaches its terminal velocity, which is when the force of air resistance equals the force of gravity.
What do the military use parachutes for?
to travel downwards beneath the gravity of the atmosphere and break a persons immediate fall.
Do objects usually travel at a constant speed?
Objects do not always travel at a constant speed. Acceleration and deceleration can cause changes in an object's speed. In real-world scenarios, factors like friction, air resistance, and gravity can affect the speed of an object as it moves.
What do you call it when an objects velocity changes?
A change in an objects velocity is called acceleration. Velocity is defined as an objects speed of travel AND its direction of travel. Acceleration can change only an objects speed, only its direction or both. If there is no acceleration acting on the object, then the velocity remains constant.
What is the definition of G-force?
G-force is a measurement of acceleration felt as a multiple of the acceleration due to gravity. It quantifies the force experienced by an object undergoing acceleration and is commonly used in the context of space travel, motor sports, and amusement park rides to describe the intensity of the forces acting on the body.
If you drop an object from airplane where it goes?
The object will appear to move backwards relative to the airplane, but it will actually move in the direction of travel as well as fall downwards.
How is Acceleration related to speed?
Acceleration is the rate of change of velocity (not speed). Acceleration is the rate of change of velocity over time. Velocity is defined by speed and direction. A satellite orbiting the earth at a constant speed is still accelerating because gravity is making it travel in a circle (or ellipse) and consequently its direction and therefore its velocity is constantly changing.
When an object experience centripetal acceleration in which direction does it accelerates?
An object experiencing centripetal acceleration accelerates towards the center of the circular path it is moving along. This acceleration is responsible for changing the object's direction, allowing it to travel in a circular motion rather than a straight line.
How do you find force on frictionless inclined planed?
You will need angle of inclination and observe the object motion. Force pushing object up inclined plane is force act against gravity, if the object move at acceleration then the force is more than gravity. You will need to transform distance travel to height using trigonometry from known angle of inclination and calculate acceleration against direction of gravity. Add this extra acceleration to gravity and time the mass you get the force. So I was just wondering if you could expand on that or tell me an equation that if I only know the angle, the acceleration that they are pushing the block up at , the force of gravity which most people know (9.81 m/s2) and the mass of the block then i could get kinetic force thx Additional comment 1. Gravity pull down that is mg and incline at angle A 2. Force is on direction of incline plane and against gravity at mg sin(A) 3. At additional acceleration in direction of incline plane e.g. a this excess force is m.a 4. Net force input is m(a+g.sin(A)) if no acceleration observe then it mean a = 0 Thanks
How can you overcome gravity by leaving earth?
To overcome gravity and leave Earth, you need to achieve escape velocity. This is the speed at which an object must travel to break free from a planet's gravitational pull without any further propulsion. Once you reach escape velocity, you can travel away from Earth and venture into space.
Can an object reverse its direction of travel while maintaining aconstant acceleration?
ask your parents if they are smart
How do you incorporate drag into an equation to find a objects distance when it has been shot from a catapult?
Your basic equation is force = mass x acceleration. Once your object is launched then gravity pulls downwards so your object eventually comes to the ground. Drag is the effect of atmosphere getting in the way, and is a force acting in the revers direction of travel. You have to decide on how big this force is, as a function of speed. In most cases this can make solution of the resulting dynamic equations quite difficult if not impossible analytically, and numerical methods would have to be used.
How can object appear to be weightless even when they are pulled by gravity?
That happens when an object is in "free fall". An acceleration will also produce the sensation of gravity; when in free fall, the two (gravity and acceleration) cancel what you feel. Another way of looking at it is that, if you are in a space capsule and stand on a balance, the balance falls (accelerates) towards the center of the Earth (or whatever attracts you) just as fast as you do - so your weight won't register on the balance.
What is the relationship between an object's acceleration and the direction of the force on the object?
If an object is increasing in speed, the acceleration is positive and the force is in the direction of travel. If the object is slowing down, the acceleration is negative and the force is acting against the direction of movement.
To determine the speed of an object divide distance by acceleration?
To determine the speed of an object, you divide the distance traveled by the time taken to travel that distance. Speed is not calculated by dividing distance by acceleration. Acceleration is the rate of change of speed.
Effect of gravity to falling objects?
The heavy and light objects travel at the same rate because there are two competing factors that cancel each other out. The force of gravity is greater on the heavier object than on the lighter object, proportional to the object's mass. This means that an object with twice the mass will be pulled toward the earth with twice the force. On the other hand, the acceleration is proportional to the force divided by the mass. This means that an object that is twice the mass of another object will be accelerated twice as slowly as the lighter object given the same force. So in order for an object with twice the mass to move at the same rate as the lighter object, the heavier object must be submitted to twice the force. And this is exactly what the force of gravity does. For more information on gravity and forces, you might try the Physics section
Why are you still accelerating when you travel in a circle at a constant speed?
When you travel in a circle at a constant speed, your velocity (direction and speed) is constantly changing as you move along the curved path. This change in velocity indicates that there is an acceleration acting on the object, known as centripetal acceleration, which is directed towards the center of the circle. This acceleration is required to keep the object moving in a curved path at a constant speed.
How does gravity affect a catapult?
Gravity affects a catapult by pulling the launched object back down towards the ground. The force of gravity limits the maximum distance the object can travel and the height it can reach when launched by the catapult. Stronger gravitational force can result in a faster descent of the object after it reaches the peak of its trajectory.
