a woman draws water from a well of 15 M depth in a 15 seconds if the mass of her bucket Drone is 10 gram calculate the power used by her
Answers
Answered by
2
H=15m
T=15s
M=10g
P.E. =mgh I m taking g=10m/s
P.E.=10X10X15=1500
1500/1000=1.5
1.5x15=22.5
T=15s
M=10g
P.E. =mgh I m taking g=10m/s
P.E.=10X10X15=1500
1500/1000=1.5
1.5x15=22.5
Answered by
3
Work done = mgh
= 10 × 10^-3 kg × 9.8 m/s² × 15 m
= 1.47 Joule
Power = Work / Time
= 1.47 Joule / (15 second)
= 0.098 Watt
[Note: If value of g is taken as 10 m/s² then power will be 0.1 Watt]
= 10 × 10^-3 kg × 9.8 m/s² × 15 m
= 1.47 Joule
Power = Work / Time
= 1.47 Joule / (15 second)
= 0.098 Watt
[Note: If value of g is taken as 10 m/s² then power will be 0.1 Watt]
Similar questions