Question

busses A and B Are moving in the same direction (along positive x axis) with speed 20m/s ans 15m/s respectively. the relative velocity of B With respect A in m/s is​

Answer 1

$\huge{\underline{\underline{.........Answer.........}}}$

$\huge{\underline{Given:-}}$

${V_a = 20 m/s}$

${V_b = 15 m/s}$

$\huge{\underline{Explanation:-}}$

Relative velocity = ?.

As they are moving in same direction their relative velocity will be reduced.

${V_r = V_a - V_b}$

${V_r = 20 - 15}$

${V_r = 5m/s.}$

$\boxed{\boxed{V_r = 5 m/s}}$

so, the relative velocity of B With respect A is 5m/s (same direction)

$\huge{\underline{Additional points:-}}$

if they were moving in same direction.

${V_r = V_a + V_b}$

${V_r = 20 + 15}$

${V_r = 35m/s}$

so, the relative velocity of B With respect A is 35m/s (opposite direction)

$\boxed{\boxed{V_r = 35 m/s}}$