Question

a particle starts with a velocity of +6m/s and moves with an acceleration of -2 m/s show that after 6s the particel will be at the starting point

Answer 1

mam did not explained yet

Answer 2

$\huge\mathbb{SOLUTION }}}$

$\large \bold{the\: initial\: velocity of \: the \: particle \: is \: u=6 m/s}}$

$\large \bold{ the \: acceleration \: of \: the \:particles \: is \: a = -2 m/s^2}}$

Time interval given is t= 6s

Now,we know that for a particle starting at a point and reaching the same point will have a displacement equal to zero

So we will find the displacement of the particle after 6 seconds

$\bold { = ut + 1/2 at^2}}$

$\bold { = 6*6+1/2*(-2)*6^2}}$

$\bold { = 36-36= 0}}}$

Hence,we can say that the particle reaches the starting point after 6 seconds as it’s displacement is zero