The combined mass of Danny+skateboard is 72.5 kg
Explanation:
We can solve the problem by using Newton's second law of motion:
[tex]F=ma[/tex]
where:
F is the net force applied on Danny and the skateboard
m is the mass of Danny+skateboard
a is the acceleration
Here we have the following data:
F = 29 N is the force applied
[tex]a=0.4 m/s^2[/tex] is the acceleration of Danny and the skateboard
Solving for m, we find their combined mass:
[tex]m=\frac{F}{a}=\frac{29}{0.4}=72.5 kg[/tex]
Learn more about Newton's second law:
brainly.com/question/3820012
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