Table of Contents
Can an object have acceleration with zero velocity?
Yes, an object can have zero velocity and still be accelerating simultaneously. Let us consider an object moving in the forward direction. Now, suddenly a force acts on it and tries to accelerate the object in the reversed direction.
Can an object have increasing speed while its acceleration is decreasing example?
Can an object have increasing speed while its acceleration is decreasing? Support your answer with an example. Yes, and an example would be an object released from rest in the presence of air friction.
Can negative acceleration speed up?
An object with negative acceleration could be speeding up, and an object with positive acceleration could be slowing down. Subtracting from the value of the velocity could increase the speed of an object if the velocity was already negative to begin with since it would cause the magnitude to increase.
Is retardation opposite to acceleration?
According to Reisnick and Halliday, retardation is the acceleration in the negative direction of time axis ie. opposite to the motion. Decreasing accleretion is the decrease in the magnitude of time rate of change of velocity.
What’s the formula for retardation?
Retardation or deceleration is negative change in velocity per unit time. So, Here, retardation=change in velocity/time(seconds). Retardation= -acceleration.
What is the SI unit of acceleration and retardation?
The SI unit of retardation is the same as that of acceleration, that is metre per second squared (m/s2).
What is retardation and write its SI unit?
Retardation can be defined as the decrease in the velocity per second. Since negative acceleration is retardation, its S.I. unit is the same as acceleration. i.e., metre per second square ms−2.
What is retardation in physics with example?
A body is said to be retarded if its velocity is decreasing. Eg: a train is said to be retarded when it slows down on reaching a station,i.e. the velocity decreases.Retardation is acceleration with negative sign. Or negative value of acceleration shows that the velocity of a body is decreasing.