Answer:
a) [tex]a = 0.9 m/s^2[/tex]
Explanation:
As per Newton's 2nd law we know that net force on an object of mass "m" is given by the formula
[tex]F = ma[/tex]
so net force is the product of mass and acceleration
here we know that
mass = 5 kg
net force on the particle is 4.5 N
so from above equation we have
[tex]4.5 = 5 \times a[/tex]
so the acceleration is given as
[tex]a = \frac{4.5}{5} = 0.9 m/s^2[/tex]