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Grade: 11

                        

A body starts from rest and moves with acceleration a0 After t0 it moves with constant velocity for further time t0 and then retards with 2a0 What is the av vel

7 months ago

Answers : (2)

Arun
25256 Points
							
Dear student
 
Please tell what is meaning of av
 
I didn't get it.
Please attach clear image if possible
7 months ago
Vikas TU
13783 Points
							
Dear student 
initial velocity (u)=0
after t0, velocity=a0×t0(case i)
this body travelled next t0 seconds with velocity a0×t0 (case ii)and then retards with 2a0
final velocity=0(case iii)
Case(i)
Displacement=a0(t0)^2/2
time=t0
Case (ii)
Displacement=a0(t0)^2
time=t0
Case (iii)
time=t0/2 [v=u+at]
Displacement=3a0(t0)^2/4
average velocity=total displacement/time
=9a0(t0)^2/4÷5t0/2
=9a0t0/10
7 months ago
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