Amachine that changes only the direction of a force has a mechanical advantage of a. 1 c. 10 b. 2 d. 100

a. 1.

Explanation: Machanical advantage of a machine is given by

Machanical advantage = Load/Effort

Or

Machanical advantage

= output force/input force.

In the case where the machine only changes the direction of the force we have that:

Load = Effort

or

input force = out force

Therefore,

Machanical advantage = Load/Load which is equal to 1

Or

Output force / output force which is also the same as 1.

a=d/t

a="triangle"v/t

explanation:

a = acceleration

i believe the answer is a hope it and is correct