SATHEE: Kinematics Question 392

Kinematics Question 392

Question: Two particles start moving from rest from the same point along the same straight line. The first moves with constant velocity v and the second with constant acceleration a. During the time that elapse before the second catches the first, the greatest distance between the particles it’s

Options:

A) $\frac{v^{2}}{a}$

B) $\frac{v^{2}}{2 a}$

C) $\frac{2 v^{2}}{a}$

D) $\frac{v^{2}}{4 a}$

Show Answer

Answer:

Correct Answer: B

Solution:

Initial relative velocity, $v_{A B} =v - 0 = v .$

Acceleration $a_{A B} = 0 - a=a$

For max. Separation $v_{A B} = 0$

$0= v^{2} - 2 a s \Rightarrow s= \frac{v^{2}}{2 a}$

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Kinematics Question 392

Question: Two particles start moving from rest from the same point along the same straight line. The first moves with constant velocity v and the second with constant acceleration a. During the time that elapse before the second catches the first, the greatest distance between the particles it’s

Options:

Answer:

Solution:

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