Rotational Things to Know

Physics Test 3

Theta

Measured in radians

1 radian

360 degrees/2 pi`

1 revolution

2 pi rad

1 revolution/sec

2 pi rad/sec

1 rpm

1 rev/min

1 rev/min

2 pi rad/60 seconds

alpha (acceleration)

constant 

w

angular velocity

w_f

w_i + a(t)

theta

angular displacement

theta_f

theta_i + w_i(t) + 1/2a(t)²

w_f²

w_i² + 2a(theta_f - theta_i)

theta_f - theta_i

1/2(w_i + w_f)t