Question

answer the 6th question

Answer 1

$\mathsf{\huge{Answer}}$

$\bold{Given\:that,}$

Velocity = 20m/s

Distance = 6cm = 0.06m

Intial velocity = 0m/s

$\bold{To\:find,}$

Deceleration of the bullet = ?

$\bold{By\:using\:3rd\:equation\:of\:motion}$

$2(-a) s = v^2 - u^2$

$\bold{By\:substituting\:the\:given\:values}$

$2(-a) (0.06m) = (20m/s)^2 - (0m/s)^2$

0.12(-a) = 400m/s - 0

0.12(-a) = 400m/s

-a = $\frac{400}{0.12}$

-a = 3,333.3

a = - 3,333.3