So, first you find your acceleration which is 3m/s^2, using the acceleration formula.
Now set up your equation, F=ma, so put in the stuff, F=80kg·3m/s^2. Then solve your equation by multiplying, and you get F=240N, since newtons are your measurement.
Hope this helps
Answer:
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Answer:
The magnitude of the acceleration of the boy toward the girl is 
Explanation:
It is given that,
Mass of the boy, 
Mass of the girl, 
The acceleration of the girl toward the boy is, 
To find,
The acceleration of the boy toward the girl.
Solution,
Let 
is the magnitude of the acceleration of the boy toward the girl. We know that force acting on one object to other are equal in magnitude but opposite in direction. So,
So, the magnitude of the acceleration of the boy toward the girl is
Assuming that the gravitational field strength is 10 N/kg, the sum would look like this:
PEg=mgh
=60×10×10
=6000J
However, you will need to check that you are not meant to be using 9.8 N/kg as the gravitational field strength.
