Hot Student Stories

# How many revolutions does the object make during the first 4.0 s?

#### 1 answer

### Add you answer

##### Wanna comment?

Please Sign In / Sign Up

Radians/second * seconds = Radians BUT the angular velocity is not constant in this case we need to integrate ω over time. We know that this integral is the area under the curve in which we can find the use of the plot: 20rad/s*2s + (10+5) + 10*0.4 = 59 radians 59 radians * 1rev/2π radians = 59/2π = 9.4 revolutions