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Physics, 03.06.2020 19:00 kristofwr3444

A posição de um veículo no trecho reto de uma estrada, durante um certo tempo e a partir de um estabelecido referencial, tem a seguinte forma: S = – 4,0 + 40t (no MKS). Pode-se afirmar que: a) Seu movimento é retrógrado.

b) Sua aceleração centrípeta é nula.

c) Ele inverte o sentido de movimento em t = 16 s.

d) Ele passa na origem dos espaços no instante t = 80 s.

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