Statement-1 : To unscrew a rusted nut, we need a wrench with longer arm.
Statement-2 : `overset rarr(tau) = overset rarr(r ) xx overset rarr(F)`.

Options

A. Statement-1 is true, Statement-2 is true ,
Statement-2 is correct explanation of Statement-1.
B. Statement-1 is true, Statement-2 is true but Statement-2 is not correct explanation of Statement-1.
C. Statement-1 is true, but statement-2 is false.
D. Statement-1 is false, but statement-2 is true.

Answer

A

Explanation

The statement-1 and statement-2, both are true. Statement-2 is a correct explanation of the statement-1.
`tau =` force `xx` arm of couple. The wrench with longer arm will require lesser force for the same turning effect.