Q. 95.0( 2 Votes )

When do you say that an object has negative acceleration?

Answer :

When an object decreases its speed it is said to be undergoing negative acceleration/retardation.

Explanation:


Acceleration is defined as,


Where vf is the final velocity


vi is the initial velocity


t is the time taken


Suppose an object starts with 20m/s from a point A. When it covers a distance of 100m, then, its velocity is decreased to 10m/s.


This is a case of retardation or decrease in acceleration.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Conservation of MomentumQuiz | Conservation of MomentumQuiz | Conservation of Momentum33 mins
Test your knowledge of Laws of motionTest your knowledge of Laws of motionTest your knowledge of Laws of motion44 mins
Quiz | Lets Say Hey to Newton!!!Quiz | Lets Say Hey to Newton!!!Quiz | Lets Say Hey to Newton!!!50 mins
NCERT | Newton's Second LawNCERT | Newton's Second LawNCERT | Newton's Second Law41 mins
Lakhmir Singh | Force and Laws of Motion Part-3Lakhmir Singh | Force and Laws of Motion Part-3Lakhmir Singh | Force and Laws of Motion Part-347 mins
What is Impulse?What is Impulse?What is Impulse?44 mins
Understanding Action-Reaction PairUnderstanding Action-Reaction PairUnderstanding Action-Reaction Pair36 mins
Quiz | Become a Master of Conservation of MomentumQuiz | Become a Master of Conservation of MomentumQuiz | Become a Master of Conservation of Momentum32 mins
Newton's First Law of MotionNewton's First Law of MotionNewton's First Law of Motion48 mins
Newton's first law and InertiaNewton's first law and InertiaNewton's first law and Inertia34 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses