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4-1.Newton's Laws of Motion
normal
Find the acceleration of $C$ w.r.t. ground.
A$a \hat{i}-(2 a+2 b) \hat{j}$
B$a \hat{i}-(2 a+b) \hat{j}$
C$a \hat{i}-(a+2 b) \hat{j}$
D$b \hat{i}-(2 a+2 b) \hat{j}$
Solution
Let$C=c_x \hat{i}+c_y \hat{j}$
$C_x=a \rightarrow$
$-a-b+0+0-b-a+c=0$
$c_y=(2 a+2 b) \downarrow(\text { By constrain Motion })$
$\text { In ground frame }$
$\therefore \quad C=a \hat{i}-(2 a+2 b) \hat{j}$
Standard 11
Physics
