Highly selective Backlog Qs for JEE MainPhysicsMotion in One Dimension
The displacement x of a particle varies with time t as x=a e^ -a t +B^ x , where a, b, and are positive constants. The velocity of the particle will:
Options
- Abe independent of
- Bdrop to zero when =
- Cgo on decreasing with time
- Dgo on increasing with time
Correct answer
D. go on increasing with time
Step-by-step solution
From question aligned & x=a e^ - t +b e^ t & V= d x d t =-a e^ -x t +b _e^ B + & V =-a e^ -t +b ^ t aligned We can tell that velocity will increase with time since the negative component will decrease with an increase in time and the positive component will increase in the equation given equation.