Consider the following Assertion and Reason statements and choose the most appropriate answer:
1. Two students compare a lever and an inclined plane.
Assertion (A): Both machines make lifting heavy objects easier.
Reason (R): Both machines reduce the total work done on the object.
Assertion (A): Both machines make lifting heavy objects easier.
Reason (R): Both machines reduce the total work done on the object.
2. A student concludes,
"A movable pulley and a fixed pulley always have the same mechanical advantage because both use a rope.
" Assertion (A): The student's conclusion is correct.
Reason (R): A movable pulley can have a mechanical advantage greater than 1.
" Assertion (A): The student's conclusion is correct.
Reason (R): A movable pulley can have a mechanical advantage greater than 1.