Assertion : Retardation is directly opposite | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Retardation is defined as the negative acceleration,which means the acceleration vector is directed opposite to the velocity vector. This causes a

Vedclass · Accepted Answer

If both $Assertion$ and $Reason$ are correct and the $Reason$ is a correct explanation of the $Assertion$.

Vedclass · Answer

(A) Retardation is defined as the negative acceleration,which means the acceleration vector is directed opposite to the velocity vector. This causes a decrease in the magnitude of velocity (speed) over time. The $Assertion$ is correct because retardation,by definition,acts in the direction opposite to the velocity to reduce it. The $Reason$ is also correct because retardation is indeed the time rate of decrease of speed. Since the decrease in speed is caused by the acceleration acting opposite to the velocity,the $Reason$ correctly explains why retardation is defined as it is in the $Assertion$.

$Assertion$ : Retardation is directly opposite to the velocity.
$Reason$ : Retardation is equal to the time rate of decrease of speed.

Similar Questions

What is acceleration? What is its direction,and state its $SI$ unit.

The position $x$ of a particle varies with time $t$ as $x = at^2 - bt^3$. The acceleration of the particle will be zero at time $t$ equal to

$A$ particle moves along the $x$-axis and its displacement $x$ varies with time $t$ according to the equation $x = c_0(t^2 - 2) + c(t - 2)^2$,where $c_0$ and $c$ are constants of appropriate dimensions. Which of the following statements is correct?

The correct position $(x)$ - time $(t)$ graph for a particle moving with negative acceleration is

The velocity of a particle is given by the equation $v(x) = 3x^2 - 4x$,where $x$ is the distance covered by the particle. The expression for its acceleration is

Vedclass Test Series

Exam Paper Generator

Online Exam Module

$Assertion$ : Retardation is directly opposite to the velocity. $Reason$ : Retardation is equal to the time rate of decrease of speed.