Question

John pushes his brother Danny on a skateboard. John applies a force of 29 N and Danny's acceleration is 0.4 m/s^2

Answer 1

The combined mass of Danny+skateboard is 72.5 kg

Explanation:

We can solve the problem by using Newton's second law of motion:

$F=ma$

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

$a=0.4 m/s^2$ is the acceleration of Danny and the skateboard

Solving for m, we find their combined mass:

$m=\frac{F}{a}=\frac{29}{0.4}=72.5 kg$

Learn more about Newton's second law:

brainly.com/question/3820012

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Answer 2

Answer:

73 kg A P E X answer

Explanation: