Question

3. The mechanical advantage of an inclined plane is _______
(a) always equal to 1
(c) always greater than 1
(b) always less than 1
(d) mostly greater than 1​

Answer 1

In an inclined plane, the formula for mechanical advantage is the length of the slope divided by the height of the inclined plane. where, Mechanical advantage =

height

slopelength

.

Since for a right angle triangle, slope (i.e. hypotenuse ) is always greater than the height (i.e. any side), the mechanical advantage is greater than unity in case of an inclined plane.

Answer 2

Explanation:

always greater than 1

Mechanical advantage =

height/

slopelength

.