Question

5.
The acceleration of block B realtive to the
ground, if the blcok A moves to the left with
an acceleration a, is
A) 31a, B) 25a, C) 30a, D) 30a,​

Answer 1

Answer:

$\Huge\bold{\underline{\underline{\green{Question:-}}}}$

Answer 2

Answer:

A)

Step-by-step explanation:

[acc.AB=5a•]

acc.B=underroot a•+(5a•)sq. +2a•5a•cos60°

acc.B=under root 31a•