Always use significant figure rules. remember that these rules apply to all numbers that are measurements. in working this problem, assume the value of "g" to be 9.8 m/s2 with two (2) significant digits unless otherwise stated.
a force of 80 n is exerted on an object on a frictionless surface for a distance of 4.0 meters. if the object has a mass of 10 kg, calculate its velocity.

a.64 m/s
b.32 m/s
c.8.0 m/s
d.5.6 m/s