anna561 anna561

08-09-2019
Physics

contestada

The amount of force needed to keep a 0.5 kg football moving at a constant speed of 8 m/s
on frictionless ice is

Respuesta :

MathPhys MathPhys

08-09-2019

Answer:

0 N

Explanation:

The football is moving at constant speed, so it's not accelerating.

∑F = ma

F = (0.5 kg) (0 m/s²)

F = 0 N

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