Four particles have speed 2,3,4 and 5 cm/s respectively. Their rms spe

1.	Four particles have speed 2,3,4 and 5 cm/s respectively. Their rms speed is:
Answer» 3.5 cm/s `((27)/(2))cm//s` `SQRT(54)cm//s` `((sqrt(54))/(2))cm//s` ANSWER :d

Discussion