Andrea is building a birdhouse. She hammers a nail in the wrong place and needs to remove it. She uses the back of her claw hammer to hold the nail and pushes the handle to remove the nail, as shown in the diagram.
Andrea is using the hammer as a simple machine to pry the nail out. What is the mechanical advantage of the hammer?
MA = Effort/Load
6.2 cm load
15.5 cm effort
a. 0.2
b. 5.4
c. 0.4
d. 2.5
To find the mechanical advantage (MA), we can use the formula MA = Effort/Load.
Given:
Load = 6.2 cm
Effort = 15.5 cm
MA = 15.5 cm / 6.2 cm
MA = 2.5
Therefore, the mechanical advantage of the hammer is 2.5. The correct option is d. 2.5.