A particle of rest mass m, is moving along positive x-direction in frame S with momentum 3 m,c. Consider another frame s' which is moving along positive y-direction with respect speed 4c/5 with respect to S frame. If E and E' respectively denote the energy of the paritcle in S and S, then which of the following option(s) is/are correct? E = 2moc 3moc 2 E= E' = E' = 10moc 3 7moc 3