A lever with an effort arm of 10 meters and a load arm of 2 meters is used to lift an object weighing 220 Newtons to a height of 4 meters. If 400Joules of work is done, how much force must have been applied?(1 point)
Responses
100 N
100 N
1600 N
1600 N
800 N
800 N
4000 N
To calculate the force applied, we use the formula:
Force (applied) = (Load * Load arm) / Effort arm
Given that the load is 220 Newtons, the load arm is 2 meters, and the effort arm is 10 meters, we can substitute these values into the formula:
Force (applied) = (220 * 2) / 10 = 44 Newtons
Therefore, the force that must have been applied is 44 Newtons.
The correct answer choice is: 100 N