Question

if the mass of particle is 6 kg and 18 N force applied in positive X- Direction then its acceleration is-
1. 3m/s2 negative direction
2. 3m/s2 positive direction
3. 6m/s2 negative direction
4. 6m/s2 positive direction

Answer 1

Assuming no friction is present,
F=ma.
a=18/6=3m/s2.

Since force is in positive X direction,
by vector equation, F(vector)=m(scalar)×a(vector).
a vector hence has the same direction
i.e positive X axis. Hence 2. 3m/s2 +ve direction.

Answer 2

hope it helps you bro