Mathematics - Trigonometric

An electric motor turns at 2400 revolutions per minute or 2400 r/m.
Find the angular velocity, in radians per second, in exact form and in approximate form, to the nearest hundredth.

--------

This is what I've done so far and I don't know what to do next ...

2400 r/m divided by 60s = 40

---------

1. 👍
2. 👎
3. 👁
4. ℹ️
5. 🚩
1. correct.

1. 👍
2. 👎
3. ℹ️
4. 🚩
👤
bobpursley
2. 2400 (rev/min)*(2 pi/radians/rev*(1 min/60 s)

You do the multiplying and rounding off.

1. 👍
2. 👎
3. ℹ️
4. 🚩
3. Okay... ?

I don't know how to solve the problem to get the answer 80pi rad/s, 251.33 rad/s ...

1. 👍
2. 👎
3. ℹ️
4. 🚩
4. Thanks drwls

1. 👍
2. 👎
3. ℹ️
4. 🚩

Similar Questions

1. physics

2. At time t =0, the current to the dc motor is reversed, resulting in an angular displacement of the motor shaft given by θ = (198 rad/s)t – (24 rad/s2)t2 – (2 rad/s3)t3 a. At what time is the angular velocity of the motor

2. TRIG

A circular power saw has an 8-1/2 inch diameter blade that rotates at 4400 revolutions per minute. a)Find the angular speed of the saw blade in radians per minute. b)Find the linear speed in feet per minute of one of the 24

3. Physics

A step-up transformer used on a 120 V line has 95 turns on the primary and 2850 turns on the secondary. What is the emf across the secondary? A. 30 V B. 1800 V C. 2400 V D. 3600 V

4. college

A ceiling fan has 15 -inch blades (so the radius of the circular fan is 15 inches). Suppose the fan turns at a rate of 60 revolutions per minute. (a) Find the angular speed of the fan in radians per minute. (b) Find the linear

1. Math

A truck with 36-in.-diameter wheels is traveling at 55 mi/h. Find the angular speed of the wheels in rad/min, *hint convert miles to inches & hours to minutes How many revolutions per minute do the wheels make? • This question

2. physics

A flywheel of moment of inertia 0.32 kgm^2 is rotated steadily at 120rad/s by a 50 W electric motor. (i)find the kinetic energy and angular momentum of the flywheel. (ii) calculate the value of frictional couple opposing the

3. mathemactics

Find the amount paid for the loan. \$2400 at 10.5% for 5 years

4. Physics

The angular velocity of a process control motor is (21−12t2) rad/s, where t is in seconds. A)At what time does the motor reverse direction? I got 6.5s B) Through what angle does the motor turn between t =0 s and the instant at

The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 6.0 rev/s in 12.0 s. At this point the person doing the laundry opens the lid, and a safety switch turns off the washer. The tub

2. physics

A tire placed on a balancing machine in a service station starts from rest and turns through 4.93 revolutions in 1.47 s before reaching its final angular speed. Calculate its angular acceleration. It must be in units of radians.

3. physics

An elevator weighing 2400 N ascends at a constant speed of 5.0 m/s. How much power must the motor supply to do this?

4. Trig

A carousel with a 50-foot diameter makes 4 revolutions per minute. a) Find the angular speed of the carousel in radians per minute. b) Find the linear speed in feet per minute of the platform rim of the carousel.