You will notice that the tool is designed with a built-in pivot point about which the torques are applied. If the gardener applies a 1.85 N · m torque (about the pivot point) in order to pull a weed, determine the resistive force (in N) the weed exerts on the weed puller.

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.