Question

A 5.9 kg block initially at rest is pulled to the
right along a horizontal, frictionless surface
by a constant, horizontal force of 12.1 N.
Find the speed of the block after it has
moved 2.6 m.

Answer 1

F = m a
12.1 = 5.9 a
solve for a

d = (1/2) a t^2
2.6 = (1/2) a t^2
we know a, solve for t

v = a t