Question

please answer 1, 3, 6 and 10 number question.please answer quickly

Answer 1

in the and of 6 the acc. of the body became a 0

Answer 2

for 1 ans is
$v = u + at$
$2as = {v}^{2} - {u}^{2}$
$s = ut + 1 \div 2a {t}^{2}$

for 10 it's projectile motion