A man holds a child on his shoulders while watching a football match.How much work is done if the game lasted for 2 hours?
Work=Force*Acceleration .Therefore W=mgh=0.Which means work is not done at all.
No work....
Solution:Mass=50Kg High=5M Acceleration=10Ms-2.Therefore total height =5m workdone=mgh therefore work =50*10*5=2500 the power(work over time) =2500 over 5=500watts.
A man holds a child on his shoulders while watching a football match . How much work has he done if the game lasts for 1 hour five reason for your answer.
No Work...
no work
no work
U guys are right no work
A man of mass 50kg ascends flight of stairs 5 m high in 5 seconds.If acceleration due to gravity is 10ms-2,the power expanded is....
