A circular disc is rotating with constant ω=2 rad/sec, about an axis passing th

Question

A circular disc is rotating with constant

ω = 2

rad/sec, about an axis passing through its centre. An object is kept at a distance of

^{'} r_{1} = 2 c m^{'}

from the centre and another object is kept at a distance of

^{'} r_{2} = 1 c m^{'}

. Find the ratio of their linear speeds.
___

Answer:
:

v = r ω

v_{1} = r_{1} ω = 2 \times 2 = \frac{4 c m}{s e c}

v_{2} = r_{2} ω = 1 \times 2 = \frac{2 c m}{s e c}

\frac{v_{1}}{v_{2}} = \frac{4}{2} = 2

Was this answer helpful ?

Next Question

More Questions on This Topic :

Question 1. A particle moves in a circle of radius 20cm with a linear speed of 10 m/s. Find the angular velocity, in rad/sec is ___....of 10 m/s. Find the angular velocity, in rad/sec is ___

Question 2. A car is going with constant speed on a circular path. If it starts from point A at t = 0 and reaches diametrically oppo....point B after 2 sec then find its angular velocity.

Question 3. For a particle in uniform circular motion the acceleration →a at a point P(R,θ)on the circle of radius R is (here θ....is (here θ is measured from the x-axis)

Question 4. A particle moves horizontally in uniform circular motion, over a horizontal xy plane. At one instant, it moves through t....and y coordinates of the center of the circular path?

Question 5. A particle moves with constant speed v along a circular path of radius r and completes the circle in time T. The acceler....circle in time T. The acceleration of the particle is

Question 6. A balloon starts rising from the surface of the Earth. The ascension rate is constant and equal to vo. Due to the wind ....Find the total, tangential, and normal accelerations of the balloon.

Question 7. A hollow vertical cylinder of radius R and height h has smooth internal surface. A small particle is placed in contact w....P. The number of revolutions made by the particle will

Question 8. Find the maximum velocity for skidding for a car moved on a circular track of radius 100 m. The coefficient of friction ....coefficient of friction between the road and tyre is 0.2

Question 9. A point P moves in counter-clockwise direction on a circular path as shown in the figure. The movement of 'P' is such th....acceleration of 'P' when t = 2 s is nearly

Question 10. Which is these is a possible direction of acceleration for a point on a car that is going on a circular track and is spe....is going on a circular track and is speeding up?

Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)

Direction Sense Test Part 1 Reasoning (Hindi)

Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE

Cube & Cuboid Part 1 Reasoning (Hindi)

Data Interpretation (DI) Basic Concept Reasoning (Hindi)

Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)

Sail E0 free webinar Webinars

Real Numbers Part 7 Class 10 Maths

Real Numbers Part 1 Class 10 Maths

Polynomials Part 1 Class 10 Maths

Pie Chart - Test Paper 1 Data Interpretation Reasoning & DI

Tabulation - Test Paper 2 Data Interpretation Reasoning & DI

Test Paper 1 Direction Sense Test Reasoning & DI

ICA , RDIC,GFM Free Modal Test Paper - Non - Technical Branch Old Syllabus 2022 - SAIL Junior Officer E0

GFM Combined 1 Free Revision Test SAIL JO E-0