Question

please answer this question fast question no 12 and 14

Answer 1

distance covered in 1o second is
4ms-2/1o seconds
as speed =d/t
then d is s×t
it distance =4×10
is Forty metres

,

Answer 2

que. 13
ans. uniform motion = an object that covers equal distance in equal interval of time is known as uniform motion.
non- uniform motion = an object that covars unequal distance in equal interval of time is known as non uniform motion.