Question

The relative velocity of two objects A nd B is 10m/s. If the velocity of object A is 40m/s then the velocity with which B moving is (assume both objects are moving in same direction)
1.10m/s
2.40m/s
3.30m/s
4.15m/s
​

Answer 1

Answer:-

$\mathsf{V_B = 30 m/s}$

Given :-

Relative velocity of A and B is 10 m/s.

Velocity of A is 40 m/s.

To find :-

The velocity of B.

Solution:-

$V_{AB}=10 m/s \\ V_B = 40 m/s$

Let the velocity of B be $V_B$m/s.

Since, They are moving in same direction.

A/Q

→$\mathsf{{V_{AB}= V_A - V_B}}$

Put the given value,

→$\mathsf{10 = 40 -V_B}$

→$\mathsf{V_B = 40 -10}$

→$\mathsf{V_B = 30 m/s}$

hence,

The velocity of B will be 30 m/s.

Answer 2

$\mathfrak{\huge{\pink{\underline{\underline{AnswEr :}}}}}$

» Given :

Relative Velocity of A and B (Vab) = 10m/s

Velocity of A (Va) = 40m/s

*Both Objects are Moving in Same Direction*

» Find :

✿ Velocity of B (Vb) = ?

» Solution :

$\large \boxed{Vab = Va + Vb}$

⚘ Plugging Values.

⇒ $10 = 40 - Vb$

⇒ $Vb = 40 - 10$

⇒ $Vb = 30 \: m/s$

✿ $\mathscr\green{So\:the\:Value\:of\:Vb\:is\:30\:m/s}</p><p>$