Newton's Second law

Experiment 2

Problem- Is the force required to get an object moving the same,less or more than the force required to keep an object moving.

Object- The object of this lab was to prove if Newtons second law is tru or not.

Hypothesis- I think that more force is required to move an object from rest then to keep it going because to start an object moving you have to give it an extra tug more then it you were just pulling it at a constant speed.

Tug Mass
1 30g
2 45g
3 85g
Jerk Mass
1 20g
2 70g4
3 40g

Constant
Test Mass
1 30g
2 30g
Faster
Test Mass
1 45g
2 45g

Materials-
String
Cart
200 gram weight
Spring Scale

Procedure- First I had to tie the string to the cart and the loop the other end ant tie it to the spring scale.

Next I had to put the weight on the cart and pull it around the table and record the progress.

Conclusin- The Chart shows that it takes more force to keep an object in motion then it does to start it.My hypothesis was incorrect.It does follow Newton's Second law.