Explain step by step 1) How much force was
used in order to push an object 4 meters if the work done is 22Nm

2) A person uses a force of 7N is used to pull a box for 8 seconds with a speed of 1.5 m/a. Calculate the magnitude of work done by the person

3) A 2kg object is pushed from a speed of 3m/a to 7/ms. How much work was done on the object?

Which composition of water moves to begin a deepwater current?

Learning goal: to understand newton's 1st law. newton's principia states this first law of motion: an object subject to no net force maintains its state of motion, either at rest or at constant speed in a right line. this law may be restated as follows: if the sum of all forces acting on an object is zero, then the acceleration of that object is zero. mathematically this is just a special case of the 2nd law of motion, f⃗ =ma⃗ , when f⃗ =0. when studying newtonian mechanics, it is best to remember the 1st law in two ways: if the net force (i.e., sum of all forces) acting on an object is zero, the object will keep moving with constant velocity (which may be zero). if an object is moving with constant velocity, that is, with zero acceleration, then the net force acting on that object must be zero. complete the following sentences to see if you can apply these ideas. part a if a car is moving to the left with constant velocity, one can conclude that

Are formed where bumps from two surfaces come into contact ?