Acceleration And Velocity Problem

In summary, acceleration is the rate at which an object's velocity changes and can be calculated by dividing the change in velocity by the time in which that change occurs. Velocity is the rate of change of an object's position while acceleration is the rate of change of an object's velocity. Acceleration can affect an object's motion by either speeding it up or slowing it down, and the direction of acceleration determines the direction of the object's velocity. Some real-life examples of acceleration and velocity include a car speeding up or slowing down, a roller coaster going down a hill, a ball being thrown in the air, and a rocket launching into space.
  • #1
varunKanpur
7
0
I am having a problem in understanding the equation of motions.

The equation of motion are
v=u+at
S=ut +1/2at^2

Velocity= distance/ time=d/t

The problem is that if u=0 then
V=at. Equation.1

S=1/2at^2
V=S/t=1/2at not equal to equation 1

What am I doing wrong??
Thanx
 
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  • #2
v = u + a*t gives INSTANTANEOUS velocity at time t.

But, if you use v = s/t you get the AVERAGE velocity.
 

FAQ: Acceleration And Velocity Problem

What is acceleration?

Acceleration is the rate at which an object's velocity changes. It is a vector quantity, meaning it has both magnitude (how much the velocity changes) and direction.

How do you calculate acceleration?

Acceleration can be calculated by dividing the change in velocity by the time in which that change occurs. The formula for acceleration is a = (vf - vi) / t, where a is acceleration, vf is final velocity, vi is initial velocity, and t is time.

What is the difference between acceleration and velocity?

Velocity is the rate of change of an object's position, while acceleration is the rate of change of an object's velocity. In other words, velocity tells us how much an object's position is changing, while acceleration tells us how much an object's velocity is changing.

How does acceleration affect an object's motion?

Acceleration can affect an object's motion in several ways. If an object has a positive acceleration, it is speeding up. If it has a negative acceleration, it is slowing down. If acceleration is zero, the object's velocity remains constant. The direction of acceleration also determines the direction in which the object's velocity is changing.

What are some real-life examples of acceleration and velocity?

Some real-life examples of acceleration and velocity include a car speeding up or slowing down, a roller coaster going down a hill, a ball being thrown in the air, and a rocket launching into space. In each of these examples, acceleration and velocity play a role in determining the object's motion.

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