A particle moving in a straight line covers half the distance with spe – McqOptions

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1.	A particle moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance is covered in two equal time intervals with speed of 4.5 m/s and 7.5 m/s respectively. The average speed of the particle during this motion is [IIT 1992]
A.	4.0 m/s
B.	5.0 m/s
C.	5.5 m/s
D.	4.8 m/s
Answer» B. 5.0 m/s

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