W1=200rpm*2pi/60=20.9rad/s
w2=200rpm-.10(200rpm)=180rpm
180rpm*2pi/60=18.8rad/s
a=(18.8-20.9)/10= -.21rad/s^2
I=1/2(28)(.15)^2
I=.315kg*m^2
Torque= -.21(.315)=.06615 N*m
Friction force= -.06615/.15=-.441 N
Normal force of man=.441/.2= 2.205 N
Final answer: -2.205 N
These applications DO NOT INVOLVE harmful ionizing energy:
- MRI
- ultrasound
- laser surgery
108 681(nearest whole day)
It would be 3.5m/s^2 East (Or whatever direction you want because it does not specify a direction for you and velocity Needs a direction, or else it would just be a scaler)
<span>The statement, Quantities must
have different units before they can be added or subtracted, is false. <span>You need to note when you add or subtract units, they
must be first homogenous or the same. In conversion factors, always check for
the units. Suppose that you are given the area of a certain house which is
164m2. You are asked to find it in square feet. You will need to multiply
0.305m by itself to get m2. You have (0.305m)^2 is equal to 0.093025ft2. Now
you have an equivalent factor of 1ft2 is equal to 0.093025ft2. After that,
divide 164m2 by 0.093025ft2 and you will get 1762.97ft2. </span></span>