Question

2. State True or False:
a. Machines when not in use should be
kept covered.
b. In a lever of second order, the
mechanical advantage is always less
than 1.
3. In operating a water pump, a load of
500 N is overcome by an effort of 50 N.
Calculate the mechanical advantage.​

Answer 1

Answer:

1.True

2.False

3.True

Hope it helps you

Answer 2

1) true

2) false

3) true

(1)machines shoulb be kept covered because if you

will not cover them they will not work properly. (2)in a lever of second order ,the mechanical advantage is always more than 1 not less.