Question

The relative velocity of two objects A and B is 10 m/s. if the velocity of object A is 40 m/s then the velocity with which B is moving is (assume both objects are moving in same direction)

Answer 1

$\large{\underline{\sf{\green{Find:\rightarrow}}}}$

• Velocity of B??

$\large{\underline{\sf{\red{Given:\rightarrow}}}}$

• From A to B velocity= $\bf{ V_{AB}= 10m/s}$

• Velocity of A = $\bf{V_A=40m/s}$

$\large{\underline{\sf{\blue{SoLution:\rightarrow}}}}$

According to question-in same direction,

• $\boxed{\bf{V_{AB}= V_A- V_B}}$

Putting values in formula we get,

$\bf {\implies 10 = 40- V_B}$

$\bf{\implies V_B= 30m/s}$

__________________________

More info-

• Relative velocity is the velocity of an object B in the rest frame of another object A.

• The SI unit is — the meter per second m/s.