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Question

Two particles one with constant velocity 50 m/s and the other with uniform acceleration 10 m/s2, start moving simultaneously from the same place in the same direction. They will be at a distance of 125 m from each other after
  1. 5sec
  2. 10sec
  3. 5(1+2)sec
  4. 10(2+1)sec

A
5sec
B
5(1+2)sec
C
10sec
D
10(2+1)sec
Solution
Verified by Toppr

u1=50m/s
u2=0
s1=u×t
a2=10m/s2
s1=50t
s2=u2t+12a2t2
s2=0+12×10×t2=5t2
s1s2=12550t5t2=125
t210t+25=0t=5

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