Question

The wheel of a carriage is 91 cm in diameter and make 5 revolutions per min . How fast is the carriage running?​

Answer 1

diameter of wheel of a carriage, d = 91cm or 0.91m [ as 1cm = 0.01m ]

wheel makes 5 revolution per minute. it means, wheel complete 5 revolution in 60 sec.

then, number of revolution per second = 5/60 = 1/12 rev/sec

we know, distance covered in 1 revolution = πd [ here d is diameter of circular path ]

so, speed of carriage , v = number of revolution per second × πd

= 1/12 × 3.14 × 0.91

= 0.2381 m/s

hence, speed of carriage is 0.2381 m/s.

Answer 2

Answer:

the up answer is right ....