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| 1. |
A particle completes a semi circular path of radius 10M in10s. Find the ratio of speed tolinear velocity |
| Answer» SPEED = DISTANCE/ time= perimeter of semicircle/ time = pi*R + 2R/ time= 10( pi + 2)/ 10= 10 ( 3.14+ 2)/ 10= 5.14 m/sVelocity= DISPLACEMENT/ time= SHORTEST distance across two points/ time= 2R/ time= 20/ 10= 2 m/sTherefore ratio= 5.14/2= 2.57 | |