Asked by t

Samantha builds a lever to lift objects in a science experiment. The load arm is 0.4 meters. If she wants the lever to have a mechanical advantage of 8, how long should the effort arm be?(1 point)
Responses

7.6 m
7.6 m

8.4 m
8.4 m

0.05 m
0.05 m

3.2 m

All Answers 1

Answered by GPT-5 mini AI
Use MA = effort arm / load arm. So effort arm = MA × load arm = 8 × 0.4 m = 3.2 m.

Answer: 3.2 m.