An adult weighing 600N raises the centre of gravity of his body by 0.25m while taking each step of 1m length in jogging. If he jogs of 6km, the energy utilised by him in jogging is:
A
9×106J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
9×105J
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
6×106J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
6×105J
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is B9×105J Here, mg=600N,h=0.25m Length of each step =1m ∴ No of steps in 6km is N=6×103m1m=6000 ∴ Energy utilised in jogging is E=Nmgh