Question

A body of mass 15kg starts from rest nd acquire a velocity of 15m/s in 5s.find the force experienced by it?

Answer 1

Answer:

Force experienced by the body is 45N.

Explanation:

Given,

Mass of body ( m ) = 15 kg

Initial velocity of the body ( u ) = 0

Final velocity of the body ( v ) = 15 m / s

Time taken to acquire the final velocity( t )= 5 s

We know,

= > Acceleration ( a ) = Change in velocity / time taken

= > Acceleration ( a ) = ( 15 m / s - 0 ) / 5 s

= > Acceleration ( a ) = 3 m / s^2

We know,

= > Force ( F ) = m x a = mass x acceleration

= > F = 15 kg x 3 m / s^2

= > F = 45 N

Hence the force experienced by the body is 45N.

Answer 2

Hello ❤️

$\underline\mathfrak{Answer:-}$

Force = 45 N

$\underline\mathfrak{</strong><strong>Explana</strong><strong>tion</strong><strong>:-}$

Given,

Mass = 15kg

Initial velocity = 0

Velocity acquired = 15 m/s

Time = 5s

$f = ma$

$a = \frac{v - u}{t}$

$f = m \times \frac{v - u}{t}$

$f = 15 \times \frac{15 }{5}$

$f = 15 \times 3$

Therefore,

F = 45 N

Have a nice evening :)