Two boys are standing at the ends $A$ and $B$ of a ground where $AB = a$. The boy at $B$ starts running in a direction perpendicular to $AB$ with velocity ${v_1}.$ The boy at $A$ starts running simultaneously with velocity $v$ and catches the other boy in a time $t$, where $t$ is
Two boys are standing at the ends $A$ and $B$ of a ground where $AB = a$. The boy at $B$ starts running in a direction perpendicular to $AB$ with velocity ${v_1}.$ The boy at $A$ starts running simultaneously with velocity $v$ and catches the other boy in a time $t$, where $t$ is
- [AIPMT 2005]
- A
$a/\sqrt {{v^2} + v_1^2} $
- B
$\sqrt {{a^2}/({v^2} - v_1^2)} $
- C
$a/(v - {v_1})$
- D
$a/(v + {v_1})$
Similar Questions
Which is the direction of instantaneous velocity for angular path ?
Which is the direction of instantaneous velocity for angular path ?
It takes one minute for a passenger standing on an escalator to reach the top. If the escalator does not move it takes him $3$ minute to walk up . ....... $\sec$ long will it take for the passenger to arrive at the top if he walks up the moving escalator ?
It takes one minute for a passenger standing on an escalator to reach the top. If the escalator does not move it takes him $3$ minute to walk up . ....... $\sec$ long will it take for the passenger to arrive at the top if he walks up the moving escalator ?
The figure shows the velocity $(v)$ of a particle plotted against time $(t)$
The figure shows the velocity $(v)$ of a particle plotted against time $(t)$
Figure shows a body of mass m moving with a uniform speed $v$ along a circle of radius $r$. The change in velocity in going from $A$ to $B$ is
Give explanation of position and displacement vectors for particle moving in a plane by giving suitable equations.
Give explanation of position and displacement vectors for particle moving in a plane by giving suitable equations.