A pulley of radius \( 2 \mathrm{~m} \) is rotated about its axis by a force \( \mathrm{F}=\left(...

Channel:
PW Solutions
Subscribers:
451,000
Published on ● Video Link: https://www.youtube.com/watch?v=N-N4d68rdTg


Duration: 8:17
4 views
0

A pulley of radius \( 2 \mathrm{~m} \) is rotated about its axis by a force \( \mathrm{F}=\left(20 \mathrm{t}-5 \mathrm{t}^{2}\right) \) newton (where \( \mathrm{t} \) is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is \( 10 \mathrm{~kg} \mathrm{~m}^{2} \),
\( P \) the number of rotations made by the pulley before its direction of motion if reversed, is :
(A) less than 3
(B) more than 3 but less than 6
W.
(C) more than 6 but less than 9
(D) more than 9
[AIEEE-2011]
πŸ“²PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-12-13A thin uniform rod of length \( \ell \) and mass \( m \) is swinging freely about a horizontal a...
2022-12-13A wire of mass \( \mathrm{m} \) and length \( \ell \) can slide freely on a pair of fixed, smoot...
2022-12-13IV
2022-12-13A resistance Rofthemal cefficiento ofressistivity=aiscomnected in paralle with aresistance=3R, \...
2022-12-13This question has Statement-1 and Statement-2. Of the four choices given after the statements, c...
2022-12-13A vertical barmagnet is dropped from position on the axis of a fixed metallic coil as shown in f...
2022-12-13A hollow cylinder with inner radius \( \mathrm{R} \), outer radius \( 2 \mathrm{R} \) mass \( \m...
2022-12-13A potentiometer wire \( \mathrm{AB} \) is \( 100 \mathrm{~cm} \) long and \( \mathrm{P} \) has a...
2022-12-13If a particle is moving on straight line and a constant instantaneous power is supplying on the ...
2022-12-13A small block of mass \( 500 \mathrm{gm} \) is pressed against a horizontal spring fixed at one ...
2022-12-13A pulley of radius \( 2 \mathrm{~m} \) is rotated about its axis by a force \( \mathrm{F}=\left(...
2022-12-13For the given uniform square lamina \( \mathrm{ABCD} \), whose centre is \( \mathrm{O} \), (A) \...
2022-12-13A thin circular ring of mass \( m \) and radius \( R \) is rotating about its axis with a consta...
2022-12-13Four point masses, each of value \( \mathrm{m} \), are placed at the corners of a square ABCD of...
2022-12-13Angular momentum of the particle rotating with a central force is constant due to (A) Constant F...
2022-12-13For a particle moving along the \( x \)-axis velocityposition graph is as shown. Select the inco...
2022-12-13Referring to a-t diagram, find the velocity of the particle at \( \mathrm{t}=20 \mathrm{~s} \). ...
2022-12-13A straight rod \( \mathrm{AB} \) of mass \( \mathrm{M} \) and length \( \mathrm{L} \) is placed ...
2022-12-13Acceleration-velocity graph of a moving particle is shown in figure. P W The particle is :- (1) ...
2022-12-13Each of the three graphs represents acceleration versus time for an object that already has a po...
2022-12-13graph is given in the figure. Find distance travelled \( P \) by the particle in \( 5 \mathrm{se...


Tags:
pw