0
Acceleration is change in velocity over time. a = vf - vi/Δt, where a is acceleration, vf is final velocity, vi is initial velocity, and Δt is the time interval. For example, a car accelerates from rest to 15m/s in 5.9s. What its acceleration?
vi = 0m/s, vf = 27m/s, Δt = 5.9s, a = ?
a = 27m/s - 0m/s/5.9s = 4.6m/s/s = 4.6m/s2
What else can I help you with?
An object changing direction is an example of?
An object changing direction is an example of acceleration. This change in direction results in a velocity change, which is a key characteristic of acceleration in physics.
How did changing the mass of the marble change velocity and acceleration values?
From the equation F=ma, fixing F (force) as a constant, changing m(mass) effects directly to a(acceleration). Increasing mass, acceleration drops, decreasing mass, acceleration increases. Acceleration= change in velocity/ time.
What effect does fraction have on the velocity of the ball?
The fraction of force affecting the ball determines its acceleration and, consequently, its velocity. A higher fraction of force results in greater acceleration and a higher velocity, while a lower fraction results in less acceleration and a lower velocity.
Why is Acceleration vector quantity?
That simply means that the direction of the acceleration is relevant. For example, if something is moving in the "forward" direction, it isn't the same if we accelerate it forward, backward, or sideways. The results are different.Also, acceleration is calculated as dv/dt, meaning you divide a velocity difference by a time. Since velocity is itself a vector, acceleration is also a vector.
Can there be acceleration in the body even when the body is not speeding up or slowing down?
Yes. Acceleration is change in velocity. Velocity is either change in speed or change in direction. If you fix the speed, change in direction can account for change in velocity, i.e. acceleration.
An object changing direction is an example of?
An object changing direction is an example of acceleration. This change in direction results in a velocity change, which is a key characteristic of acceleration in physics.
How did changing the mass of the marble change velocity and acceleration values?
From the equation F=ma, fixing F (force) as a constant, changing m(mass) effects directly to a(acceleration). Increasing mass, acceleration drops, decreasing mass, acceleration increases. Acceleration= change in velocity/ time.
How is acceleration related to velocity?
Acceleration is the rate of change in velocity.
What effect does fraction have on the velocity of the ball?
The fraction of force affecting the ball determines its acceleration and, consequently, its velocity. A higher fraction of force results in greater acceleration and a higher velocity, while a lower fraction results in less acceleration and a lower velocity.
Why is Acceleration vector quantity?
That simply means that the direction of the acceleration is relevant. For example, if something is moving in the "forward" direction, it isn't the same if we accelerate it forward, backward, or sideways. The results are different.Also, acceleration is calculated as dv/dt, meaning you divide a velocity difference by a time. Since velocity is itself a vector, acceleration is also a vector.
Can there be acceleration in the body even when the body is not speeding up or slowing down?
Yes. Acceleration is change in velocity. Velocity is either change in speed or change in direction. If you fix the speed, change in direction can account for change in velocity, i.e. acceleration.
What is difference between uniform acceleration and variable acceleration?
Uniform acceleration simply means that the acceleration doesn't change over time. Variable acceleration may change over time. For practical purposes, problems with uniform acceleration (such as the one provided by gravity, near the Earth's surface) are much easier to calculate. Variable acceleration requires integration, which isn't taught in high school, but may appear at college if you study in a career in engineering.
How if force related to velocity and acceleration?
Force is related to velocity through Newton's second law, which states that force is directly proportional to the acceleration of an object. Mathematically, force (F) = mass (m) x acceleration (a). Acceleration is directly related to velocity, as a change in velocity over time results in acceleration. Therefore, force can indirectly be related to velocity through its influence on acceleration.
Why is acceleration of a body moving uniformaly in a circle directed toward the centre?
The acceleration of a body moving uniformly in a circle is directed towards the center because the velocity of the body is constantly changing direction, even though its speed remains constant. This change in direction of the velocity results in a centripetal acceleration that is required to keep the body moving in a circular path.
How can you have acceleration without a change in velocity?
Turning is acceleration, and it doesn't affect your speed. One example of this is a satellite in orbit, it is always accelerating towards the Earth due to gravity, but the speed doesn't change because it's just turning in a circle around the Earth.
Can velocity and acceleration point in opposite direction?
Yes, velocity and acceleration can point in the opposite direction to each other. This is because neither one depends on the other. When velocity and acceleration are opposite each other this results in slowing down, for example when you hit the break on your car.
How is acceleration created?
Acceleration is created by a change in velocity, which can be due to a change in speed, direction, or both. This change in velocity results in a change in the object's momentum, leading to acceleration. An object can accelerate through the application of a force, such as gravity, friction, or propulsion.
