Um automovel, move-se a uma velocidade de 90km/h. As suas rodas têm um diâmetro de 50cm e não escorregam no solo . a) Qual é a velocidade linear de um ponto no Centro da roda?
b) Calcule a frequência de rotação da roda.
C) Calcule a velocidade linear e angular de um ponto da periferia.

Matt is driving down 7th street. he drives 150 meters in 18 seconds. assuming he does not speed up or slow down, what is his speed?

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity