A 60 kg person climbs stairs of total height of 20 m in two minutes, calculate
the power delivered. (g = 10 ms-2]
Answers
Answered by
2
weight = 60 × 10 = 600N
time = 2min = 120sec
Work done = 600 × 20 = 12000J
Power = 12000/120 = 1200Watts
Answered by
148
Step by step explanation:-
Given:-
- Mass = 60kg
- Height = 20m
- Time = 2 minutes
- g = 10m/s²
To find :-
Power ?
Concept:-
We know that power =
As we know that Work done may be potential energy or kinetic energy or electrical energy ,elastic energy etc
Here according to question Work done should be
W = change in potential energy = mgh
So,
By the above concept this is the formula
Power =
Solution:-
Substuite in formule
p =
T = 2min
1 min = 60seconds
2min = 2 ×60= 120 seconds
p =
p =
p =
power = 100watts
Power units are watts
So, power = 100watts
Similar questions
Math,
2 months ago
Math,
2 months ago
Hindi,
2 months ago
India Languages,
4 months ago
Social Sciences,
4 months ago
English,
11 months ago
English,
11 months ago
Hindi,
11 months ago