Answer:
Option 4.
Step-by-step explanation:
Reciprocal of the second fraction turns the product into the division of the two fractions, which equals to 1.
Two fractions are said to be the reciprocal or multiplicative inverse of each other, if their product is 1.
Answer:
The radius of the gear is, 0.286624204 m
Step-by-step explanation:
A gear is driven by a chain that travels 90 m/min. If it makes 50 revolutions per minute. then find the radius of the gear
let angular velocity be , velocity be v and radius be r.
Given:
Angular velocity =50 revolutions per minute
1 revolution = radian
50 revolution= radian
therefore, radian per minute
and velocity(v) = 90 meter per minute
Use formula: Velocity(v)= radius(r) angular velocity
then, we write above formula as :
Substitute the value of v and to solve for r: the constant value of pi i.e,
[as radian is unit less]