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aalyn [17]
3 years ago
10

A child on a skateboard experiences a 75 N force with an acceleration of 1.5 m/s2.

Physics
1 answer:
cupoosta [38]3 years ago
3 0

Answer:

The mass of the child + skateboard is 50 kg

Explanation:

In this problem, we can apply Newton's second law:

F = ma

where

F is the net force on a system

m is the mass of the system

a is the acceleration of the system

In this problem, our system is the child + the skateboard. The net force on them is

F = 75 N

and their acceleration is

a=1.5 m/s^2

So we can re-arrange the equation above to find their combined mass:

m=\frac{F}{a}=\frac{75}{1.5}=50 kg

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