What would the mass be of a dog on skateboard if you pushed it with 20n of force & it accelerated to 2m/s2 ?

The mass of a dog on skateboard would be 10 kg.

Explanation:

To solve this problem you have to use Newton´s second law F = m x a

20 N = m x 2 (m/s²) ⇒ 20 N/ 2 m/s² = m ⇒ m = 10 kg.

The mass of a dog on skateboard would be 10 kg.

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