You pull a box with a constant force across a frictionless table using an attached to
tionless table using an attached rope held horizontally. if
you then pull the box with the same force but now at an angle to the horizontal (the box
now at an angle to the horizontal (the box remains flat on the
table), does the acceleration of the box:
a. remain the same
b. increase
c. decrease
d. there is no acceleration
e. the angle needs to be known

i know that answer is c but can someone explain why you

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