Navigate

A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00

A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00 rad/sec. In a time of 2 sec it has rotated through an angle (in radian) of

Options

(a) 10
(b) 12
(c) 4
(d) 6

Correct Answer:

10

Explanation:

Since, θ = ?￢ﾂﾀt + 1/2 αt²
Where, α is angular acceleration, ?￢ﾂﾀ is the initial angular speed. t = 2s
θ = 2 x 2 + 1/2 x 3(2)² = 4 + 6 = 10 rad

AIPMT2007
admin:

Related Questions

  1. The loudness and pitch of a sound note depends on
  2. In the half wave rectifier circuit operating from 50 Hz mains frequency,
  3. A thin semicircular conducting ring (PQR) of radius r is falling with its plane
  4. Light of two different frequencies whose photons have energies 1eV
  5. A particle of mass 1mg has the same wavelength as an electron moving with a velocity