Question

pls help me fast




Science .
chapter Motion

class 9​

Answer 1

Answer:

distance travelled_average velocity ×time

so,s=(u+v/2)×t

from the first equation of motion we have,v_=u+at

put this value in equation

s,=(u+u+at/2)×t

or,s=(2u+at)×t

then,2ut+at2/2

ut+1/2at2