Linear Speed Example # 1
1 revolution is equal to 2π unit of time (this is also the raduis.)
A ferris wheel with a radius of 15 in has 3 revolutions per second. Convert to miles per hour.
1. Convert revolutions to radians
2. Write Equation
3. Fill in equation w/ your information
4. Convert from in/sec to mi/hr
5. Write out answer
2. Write Equation
3. Fill in equation w/ your information
4. Convert from in/sec to mi/hr
5. Write out answer
Linear Speed Example #2
A ferris wheel with a radius of 10 ft makes 6 revolutions in 1 sec. Convert to inches per min.
1. Convert to radians
2. Write equation
3. Fill in equation w/ your information
4. Convert from ft/sec to in/min
5. Wirte down answer
2. Write equation
3. Fill in equation w/ your information
4. Convert from ft/sec to in/min
5. Wirte down answer
Linear Speed Example #3
A ferris wheel has a radius of 90 cm and makes 3.5 revolution in per second. Convert to meters per minute. (Find the answer to this problem on "other" page.)
Angular Speed Example #1
Given the linear speed of 100 mi/hr and the radius of 2 mi find the angular speed in rev/sec.
1. Write equation
2. Fill equation w/ given information
3. Convert to revolutions per second
4. Write down answer
2. Fill equation w/ given information
3. Convert to revolutions per second
4. Write down answer
Angular Speed Example #2
Given the linear speed of 75m/s and the radius of 15m find the angular speed in revolutions per second.
1. Write equation
2. Fill in the equation w/ given information
3. Convert to rev/sec
4. Write answer
2. Fill in the equation w/ given information
3. Convert to rev/sec
4. Write answer
Angular Speed Example #3
Given the linear speed of 60 km/s and the radius of 30 km find the angular speed in revolutions per second. (Answer this problem can be found on "other" page.)
Arc Length Example #1
The needle of a scale in grocery store moves 62° and has a radius of 6 cm. Find the arc length.
1. Write equation
2. Convert degrees to radians
3. Fill in equation w/ given information
4. Write answer
2. Convert degrees to radians
3. Fill in equation w/ given information
4. Write answer
Arc Length Example #2
The needle of a scale in grocery store moves 10° and has a radius of 3.5 in. Find the arc length.
1. Write equation
2.Convert degrees to radians
3. Fill in equation
4. Write answer
2.Convert degrees to radians
3. Fill in equation
4. Write answer
