Question
Question: A particle moves according to the equation t = √x + 3, when the article comes to rest for the first ...
A particle moves according to the equation t = √x + 3, when the article comes to rest for the first time
A
3s
B
2.5 s
C
3.5 s
D
None of these
Answer
3s
Explanation
Solution
x = (t - 3)2h
v = dx/dt = -2(t - 3) = 0 or t = 3 s.