Kindly provide the detailed explanation  
46. The speed-time graph for the motion of a motorcycle is shown here. What is the average speed over 12 s interval ?

A. 4.38 m s-1 
B. 5.58 m s-1 
C. 1.75 m s-1 
D. 3.17  m s-1 

Dear Student ,
Here in this case the average speed of the motor cycle is ,
Vavg=Total distance travelledTotal time taken=5×2+12×4×1+4×2+12×6×3+3×312=10+2+8+9+912=3812=3·17 m/s
Regards

  • 4
V total = 14 m/s
Total time = 12 sec 
Vavg = 14/12 = 1.75 m/s (approx.)
 
  • -1
total velocity 'v'= 14 m/s
total time taken is 12 sec
so average speed can be given as
14/12 which is
1.75m/s { the value is approximate}
  • 0
total velocity v=14m/s
total time taken = 12s
​so average speed can be given as 14/12 =1.75m/s
 
  • 0
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