While traveling in a straight line, an object with a mass of ? kg speeds up from a velocity of ? m/s to a velocity of ? m/s while being displaced ? m. What would be the net force on this object?

Solution:

vf2 = vi2 + 2ad

vf2 = vi2 + 2(F/m)d

F = (m)(vf2 - vi2) / (2d)

F = (? kg)((? m/s)2 - (? m/s)2 / (2(? m))

F = (? kg)(? m2/s2 - ? m2/s2) / (? m)

F = (? kg)(? m2/s2) / (? m)

F = (? kg-m2/s2) / (? m)

F = ? N

Note:

a = F / m

a = (? N) / (? kg)

a = ? m/s2

m = ? kg vi = ? m/s vf = ? m/s d = ? m