Physics, 20.04.2021 18:20, tressasill
Un automóvil que va a 36Km/h acelera durante 8segundos hasta llegar a una velocidad de 108 Km/h y luego frena hasta detenerse en 2segundos. Calcular la distancia recorrida
opciones
a)190m
b)648m
c)250m
d)576m
Answers: 1
Physics, 22.06.2019 02:00, LadyHolmes67
The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s
Answers: 3
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