Answer: MA = 5
Step-by-step explanation:
The mechanical advantage is the ratio of the load to the effort. It is a measure of how efficient a simple machine is.
MA = Load/Effort
Load = 35N
Effort = 7N
Therefore
MA = 35N/7N
MA = 5
Since the mechanical advantage is more than 1, the lever is highly efficient as it allows a very small effort to overcome 5 times its magnitude of load.