An object of mass 5 kilograms is moving across a surface in a straight line with a speed of 3.5 meters/second. What amount of force would be required to keep the object in motion if you ignore the surface friction?

Question

anonymous · Answer

0 newtons

17.5 newtons

3.5 newtons

5 newtons

mrnood · Answer

Newton's first Law:

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Apply that to the above, and your answer is clear...

emmatassone · Answer

As there isn't any force stoping the object no forces are needed to keep the object in motion.