Question #c5aad
1 Answer
Dec 7, 2017
Space average velocity
Time average velocity
Applicable kinematic expressions are
#v=u+at#
#s=ut+1/2at^2#
Given that particle starts from rest with constant acceleration. WE have
#v=at# .....(3)
#x=1/2at^2# ......(4)
From (3) and (4)
#v=axxsqrt(2x/a)#
#=>v=sqrt(2ax)# ......(5)
From (1)
Space average velocity
Space average velocity
#=2/3v# .......(6)
From (3)
Time average velocity
Time average velocity
#=1/2v# .......(7)
Required Ratio