Question

A 15 n force directed to the west acts on an object for 3.0 seconds, what is the change in momentum of the object?

Answer 1

45 Ns, west

Step-by-step explanation:

15 x 3 equals 45 and that’s the momentum

Answer 2

By definition we have that
force=dP/dt,
where
p is momentum
so
momentum is force*time
p= 15*3 = 45 Ns , west.
the change in momentum of the object is 45 N.s