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The power applied to a particle varies with time as P= 4t² - 3t+2 watt, where is in second. The change in its kinetic energy between time t= 1s to t= 3s. NOTE - No copied answers Don't spam!! |
| Answer» ENERGY supplied to the system = CHANGE in energy of system.Since only energy of system is kinetic,∫Pdt=ΔKE=∫243t2−2t+1dt=[t3−t2+t]24ΔKE=43−42+4−23+22−2=46Jbhai q alag KAR diya maine but method same HAI | |