What is the acceleration of an object at a given time?

Answer 1

A particle moving with a constant velocity has no acceleration. Acceleration is the change in velocity over time. If the velocity is constant, there can be no acceleration. For you Calculus junkies, dv/dt (v is velocity) is acceleration, and will equal zero if v is a constant.

Answer 2

The acceleration of an object at any particular time is known as its instantaneous acceleration. If acceleration is a function of time -- that is, if a varies with time, t-- then the evaluation of a at a particular time, tp, is the instantaneous acceleration at t = tp. Let's say acceleration is given by the linear equation a(t) = 10t - 5. When t = 1, a = 5 because a(1) = 10 * 1 - 5 = 5. It is equal to exactly 5 only when t is exactly 1. The acceleration is something less than 5 when t < 1, and it is greater than 5 when t > 1. We say the instantaneous value of a is 5 at t = 1.

Answer 3

When a particle is moving in uniform circular motion , its speed is constant . Velocity of particle changes from point to point due to change of direction of particle in uniform circular motion. This change in velocity vector leads to an acceleration which acts towards the center of circular path. The acceleration is known as Centripetal acceleration.

Answer 4

Since the direction changes, the velocity changes - and therefore there is an acceleration.

The acceleration is towards the center - therefore the acceleration changes all the time (since its direction changes). The magnitude can be calculated by:a = v^2 / r

or:

a = omega^2 x r

Where "^" stands for power, v for velocity, r for radius, omega for angular velocity (in radians/second).

Answer 5

The acceleration of an object at a given time is the rate at which its velocity is changing at that specific moment in time. It is typically measured in units like meters per second squared (m/s^2).

Answer 6

Acceleration, in physics, is the rate of change of velocity of an object. It is also written as a = F/m, where F is the net force applied to a mass, m.

Answer 7

Acceleration in physics means that an object that is moving continues moving faster and faster. Typically cars accelerate from the starting point to a midpoint when traveling.

Answer 8

rate of change of a body in motion with respect to time.

Answer 9

acceleration is the rate of change of velocity over time.

Answer 10

Acceleration is the rate of velocity. It is measured in m/sec2.