A particle with mass

m = 3.80 kg
accelerates according to
a = (−2.60i + 1.70j) m/s2.
(a) What is the net force acting on the particle? (Express your answer in vector form.)
F =

N

(b) What is the magnitude of this force?

N

1 answer

Force= mass*acceleration
so multiply acceleration by mass.

Force magnitude: the two components, each squared, added, in ... such a manner if
force= xxxi + yyyj then
force=sqrt(XXX^2 + YYY^2)