b)two children A and B both weighing 32kg start climbing up a rope separately reach height of it may take 15 seconds and B takes 20 seconds to reach that level calculate the amount of work done by A and B which of the two has more cash or Bank calculation?
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A B
m=32 kg m=32kg
common height=8 m
t=15 secs t=20 secs
therefore, work done by A n B will be same = FS = maS
= 32 * 10 *8
= 2560 J
Power of A = W/t = 2560/15 = 170.7watt
Power of B = 2560/20 = 128 watt
hence A has more power comparable to B
m=32 kg m=32kg
common height=8 m
t=15 secs t=20 secs
therefore, work done by A n B will be same = FS = maS
= 32 * 10 *8
= 2560 J
Power of A = W/t = 2560/15 = 170.7watt
Power of B = 2560/20 = 128 watt
hence A has more power comparable to B
Answered by
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Answer:
m=32kg
h=8m
g=10
W=mgh
=32*10*8
=320*8
=2560J
power of a=work/time
=2560/15
=170.6W
Power of B = work/time
=2560/20
=128W
Hence A has more power than B.
Explanation:
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