Question

A circular wheel make 420 rounds per minute with speed of 55.44 km per hour find radius

Answer 1

Answer:

According to question:

circumference of wheel => 55440/ (60 ×420)m min/min

=> 132/ 60 m

= > 11/ 5 m

circumference of wheel = 2 pie r

11/5 = 2× 22/7 ×r

7/ ( 20) m= r

r = 7/ 20 m

r = 0.35m

r = 35cm @n$₩€#

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