The acceleration of gravity can be measured by projecting a body upward and measuring the
Channel: Doubtnut
Date: 09/02/2020

The acceleration of gravity can be measured by projecting a body upward and measuring the time it takes to pass two given points in both directions.Show that if the time the body takes to pass a horizontal line `a` in both directions is `t_(A)` anytime to go by a second line `B` in both direction is `t_(B)`, then assuming that the acceleration is constant, its magnitude is `g=` (where `h` is the height of the line `B` above line `A`.)