Acceleration of an object moving along a straight line


 
 
Concept Explanation
 

Acceleration of an object moving along a straight line

Acceleration of an object moving along a straight line

The rate at which the velocity of an object changes is called the acceleration of the object. In other words, acceleration is the change in velocity per unit time.

Consider an object moving along a straight path in the same direction. Its velocity changes in a short time period ‘t’. Its velocity at the beginning of the time interval is ‘u’ (initial velocity). Its velocity after time  ‘t’ is v (Final velocity).

Acceleration is change in velocity per unit time;

large Acceleration = frac{ Final ;Velocity - Initial ;Velocity } {Time}

large a =frac{(v - u )}{ t }       where a is the acceleration produced in the body.

The SI unit of acceleration is large m/s^2. It is a vector quantity.

The acceleration is positive, if it is in the direction of velocity.

The acceleration is negative, if it is opposite to the direction of velocity.

The acceleration is zero, if the object is moving with constant velocity.

Sample Questions
(More Questions for each concept available in Login)
Question : 1

When an object undergoes acceleration

Right Option : B
View Explanation
Explanation
 
Video Link - Have a look !!!
 
Language - English
 
 
 
 
Related Videos
Language - English
Language - English
Language - English

Language - English
Language - English


Students / Parents Reviews [10]