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

⇦

⇨

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) 2
(c) 4
(d) 6

Correct Answer:

10

Explanation:

Given: Angular acceleration, α = 3 rad/sec², Initial angular velocity ωᵢ = 2 rad/sec, Time t = 2 sec

Using, θ = ωᵢt + (1/2) αt²

.·. θ = 2 x 2 + (1/2) x 3 x 4 = 4 + 6 = 10 radian

Related Questions:

1. A thin semicircular conducting ring (PQR) of radius r is falling with its plane
2. The value of n so that vectors 2i+3j-2k, 5i+nj+k and -i+2j+3k may be coplanar,will be
3. A boat taken 2h to travel 8km and back in still water.If the velocity of water 4 km/h
4. If light emitted from sodium bulb is passed through sodium vapour,
5. A series combination of resistor (R), capacitor (C), is connected to an AC source

Topics: Motion of system of Particles and Rigid Body (73)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends