A particle moving in a straight line covers half the distance with speed of `3 m//s`. The half of the distance is covered in two equal intervals with speed of `4.5 m//s and 7.5 m//s` respectively. The average speed of the particle during this motion is :

A particle moving in a straight line covers half the distance with speed of 3 m/s. The other half of the distance 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 :-

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 :

A particle moving in a straight line covers half the distance with speed v_(0) . The other half of the distance is covered in two equal time intervals with speed v_(1) and v_(2) , respectively. The average speed of the particle during this motion is

A particle moving in straight line cover half the distance with speed 3 ms^-1 . The other half is covered in two equal time intervals with speed 4.5 ms^-1 and 7.5 ms^-1 respectively. The average speed of the particle during motion is

A body of mass (m) moving along a straight line covers half the distance with a speed of 2 m/s. The remaining half of the distance is covered in two equal tiem intervals with a speed of 3 ms^(-1) and 5 ms^(-2) respectively. The average speed of the particle for the entire journey is .