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Answer to Question #77660 in Physics for Adam
Question #77660
A wheel of 40cm radius rotates on a stationary rim. It is uniformly speeded up from a rest to a speed of 900 rpm. In a time of 20 sec.
A. Find the constant acceleration.
B. The tangential accelerating of the rim.
2. A pulley of 5cm radius of a motor is turning at 30 revolution per second. And slow down uniformly to 20 revolution per second in 2 second. Calculate
A. The angular acceleration of the motor
B. The number of revolution it made this time
C. The length of belt it winds in this time
A. Find the constant acceleration.
B. The tangential accelerating of the rim.
2. A pulley of 5cm radius of a motor is turning at 30 revolution per second. And slow down uniformly to 20 revolution per second in 2 second. Calculate
A. The angular acceleration of the motor
B. The number of revolution it made this time
C. The length of belt it winds in this time
Expert's answer
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