Two cars $A$ and $B$ at rest at same point initially. If $A$ starts with uniform velocity of $40\, m/sec$ and $B$ starts in the same direction with constant acceleration of $4\,m/{s^2}$, then $B $ will catch $A$ after how much time.........$sec$
Two cars $A$ and $B$ at rest at same point initially. If $A$ starts with uniform velocity of $40\, m/sec$ and $B$ starts in the same direction with constant acceleration of $4\,m/{s^2}$, then $B $ will catch $A$ after how much time.........$sec$
- A
$10$
- B
$20$
- C
$30$
- D
$35$
Similar Questions
A particle starts moving from rest in a straight line with constant acceleration. After time $t_0$, acceleration changes its sign (just opposite to the initial direction), remaining the same in magnitude. Determine the time from the beginning of motion in which the particle returns to the initial position.
A particle starts moving from rest in a straight line with constant acceleration. After time $t_0$, acceleration changes its sign (just opposite to the initial direction), remaining the same in magnitude. Determine the time from the beginning of motion in which the particle returns to the initial position.
A particle moves for $8\, seconds$. It first accelerates from rest and then retards to rest. If the retardation be $3\, times$ the acceleration, then time for which it accelerates will be
For a body moving with uniform acceleration along straight line, the variation of its velocity $(v)$ with position $(x)$ is best represented by
For a body moving with uniform acceleration along straight line, the variation of its velocity $(v)$ with position $(x)$ is best represented by
A body starts moving from rest with constant acceleration covers displacement $S_1$ in first $(p-1)$ seconds and $S_2$ in first $p$ seconds. The displacement $S_1+S_2$ will be made in time :
- [JEE MAIN 2024]
A bullet fired into a fixed target loses half of its velocity after penetrating $3\,cm$. How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion?........$cm$
A bullet fired into a fixed target loses half of its velocity after penetrating $3\,cm$. How much further it will penetrate before coming to rest assuming that it faces constant resistance to motion?........$cm$
- [AIEEE 2005]