Grade 9Mechanics
please give me the answer to 2nd question.... its urgent.....
please give me the answer to 2nd question.... its urgent.....
1 Answer
Arun
Dear student
Assume the particles moves the separation AB, BC and CD in time t1,t2 and t3 individually.
Speed at B = u+at1
Speed at C = u+a(t1+t2)
Speed at D = u + a( t1+t2+t3)
Normal speed (v1)=( starting +final)/2
= (u + u + at1)/2
= u+1/2 at1
V2 = u+at1+1/2at2
V3 = u+ at1+at2+1/2at3
There fore we get
(V1-V2)/(V2-V3) = (t1+t2)/(t2+t3)
hope it helps
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