Question

a-

A wheel with moment of inertia 0.05 kgm² rotates about a fixed axis. Its kinetic energy is 1,503 J. What is ts angular speed ω in s^-1?

Enter an integer.

b-

A centrifuge starts from rest. Its angular acceleration α is constant for 20 s.
Its final angular speed is ω = 160 revolutions per second.
What is its angular acceleration α in units of s^-2?

Enter a number with one digit behind the decimal point

c-

A centrifuge in a medical laboratory rotates at an angular speed of 3600 rev/min. When switched off, it rotates 50 times before coming to rest. What is the constant angular acceleration of the centrifuge?

Group of answer choices

Answer 1