ICSE Class 8 Answered
compare the work done and power of pallavi and parul when both of them can lift the same bag of 20kg to a height of 50cm. in 2and 5 seconds respectively(Take g=10ms-2)
Asked by sujanasudheer37 | 10 Sep, 2018, 10:17: PM
Expert Answer
workdone to lift the object = increase in potential energy = mgh
power = rate of workdone = workdone/time
Pallavi :- workdone = 20×10×0.5 = 100 Joules ; power = 100/2 = 50 Watts
Parule :- workdone = 20×10×0.5 = 100 Joules ; power = 100/5 = 20 watts
Answered by Thiyagarajan K | 11 Sep, 2018, 09:35: AM
Application Videos
Concept Videos
ICSE 8 - Physics
Asked by shanvi.m.gupta | 13 Mar, 2024, 12:26: AM
ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by porwalvny | 03 Mar, 2024, 09:35: AM
ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by sumanayak76 | 29 Dec, 2023, 04:51: PM
ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by mayapriya.chowdhury9 | 18 Dec, 2023, 09:29: PM
ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by ahanabhammarkar5b | 09 Dec, 2023, 09:41: PM
ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by papur6326 | 12 Jul, 2023, 06:45: PM
ANSWERED BY EXPERT
ICSE 8 - Physics
Asked by shashikant | 03 Jul, 2023, 07:30: PM
ANSWERED BY EXPERT