A particle travels 10 m in first 5 s and 10 m in next 3 s . assuming constant acceleration what is the distance traveled in the next 2 s ?

Question

options :-
1. 8.3 m
2. 9.3 m
3. 10.3 m
4. none of these

please answer with full explanation

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Answer 1 · 2017-08-07T05:17:58

$"1. 8.3 m"$

Particle travels $"10 m"$ in first $5$ seconds

Using equation of motion $"S = ut +"\ 1/2"at"^2$

$10 = "5u" + ("25a")/2$

Multiply both sides with $8$

$80 = "40u + 100a"$ —