Question

Ali pushes a ball initially at rest towards Bilal by exerting a constant horizontal force f of magnitude 9 Newton through a distance of 2.5 metre what will be the final kinetic energy of the ball​

Answer 1

Hers your answer mark me as brainlist.......

Answer 2

Given:

Ali pushes a ball initially at rest towards Bilal by exerting a constant horizontal force f of magnitude 9 Newton through a distance of 2.5 metre.

To find:

Final kinetic energy of the ball.

Calculation:

According to Work-Energy theorem , the work done by a force will be equal to the change in kinetic energy of the body.

Let final kinetic energy be KE2;

$\rm{ \therefore \: work = \Delta KE}$

$\rm{ = > \:force \times displacement = \Delta KE}$

$\rm{ = > \:force \times displacement = KE2 - KE1}$

Putting the available values in SI unit:

$\rm{ = > \:9 \times 2.5 = KE2 - 0}$

$\rm{ = > \:9 \times 2.5 = KE2 }$

$\rm{ = > \: KE2 = 22.5 \: joules }$

So, final answer is:

$\boxed{ \large{ \sf{ \: KE2 = 22.5 \: joules }}}$