Question

Unless otherwise stated, all objects are located near the Earth's surface, where g = 9.80 m/s2 .

Answer 1

Answer:

1) 1.5 m/s^2

2) 4.5 N

Explanation:

From Newton's Second Law of motion, we know

$F=m*a$

Which states that to calculate the force acting on an object, you multiply its mass and acceleration.

So, we know an object of mass 1.5 kg has an acceleration of 3 m/s^2, then

$F=m*a=1.5*3=4.5$

A force of 4.5 N is acting on the object.

If a force of 4.5 N acts on a mass of 3kg we have

$a=\frac{F}{m}=\frac{4.5}{3}=1.5$

So, it would give it an acceleration of 1.5 m/s^2.