Question

A particle is dropped from a tower.it takes 2.4s to reach the ground.What is the final velocity of the particle?

Answer 1

Here's your answer mate..

Good luck ✌️

Answer 2

Answer:

The final velocity of particle is -23.54m/s

Explanation:

Given that,

A particle is dropped from tower.Therefore its initial velocity is zero.

$= > u = 0$

Also given,it takes 2.4sec for the particle to reach ground.

To find final velocity of particle,we use the kinematic equation of motion for a freely falling body

$v = u + at$

We know that u=0 and a=-g

$= > v = 0 + ( - g)(t) \\ = > v = - 9.81 \times 2.4 \\ = - 23.54ms {}^{ - 1}$

Negative sign indicates that the velocity is in vertically downward direction

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