the diameter of wheel of a train is 112 cm . How many revolution will it make to travel 704 km
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2
112 cm= 0.00112 km
circumference = 2πr = 2 × 22/7× 0.00112 /2= 0.00704/2 km
total number of revolutions= 704 /0.00704/2 =100000×2 =200000
circumference = 2πr = 2 × 22/7× 0.00112 /2= 0.00704/2 km
total number of revolutions= 704 /0.00704/2 =100000×2 =200000
Answered by
3
radius of the wheel of the train=diameter/2.
= 112 cm/2 =56 cm.
circumference of wheel of train ( distance covered by wheel of train in 1 revolution)= 2 × pie × radius
=2 × 22/7× 5 6 cm
=352 cm
704 km = 704× 100000 cm= 70400000 cm
so,revolution made by wheel of the train to complete 70400000 cm = 70400000 cm/ 352 cm
=200,000 .
= 112 cm/2 =56 cm.
circumference of wheel of train ( distance covered by wheel of train in 1 revolution)= 2 × pie × radius
=2 × 22/7× 5 6 cm
=352 cm
704 km = 704× 100000 cm= 70400000 cm
so,revolution made by wheel of the train to complete 70400000 cm = 70400000 cm/ 352 cm
=200,000 .
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