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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.
What do the military use parachutes for?
to travel downwards beneath the gravity of the atmosphere and break a persons immediate fall.
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.
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.
