A block of mass \( m \) slides along the track with kinetic friction \( \mu \). A man pulls the ...

Channel:
PW Solutions
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=vHxBYdZzorw


Duration: 2:23
4 views
0

A block of mass \( m \) slides along the track with kinetic friction \( \mu \). A man pulls the block through a rope which makes an angle \( \theta \) with the horizontal as shown in the figure. The block moves with constant speed \( v \). Power delivered by man is
(a) \( T v \)
(b) \( T v \cos \theta \)
(c) \( (T \cos \theta-\mu m g) v \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-11-16Find the value of \[ \frac{x}{x-1}-\frac{x^{2}}{x^{2}-1} \]
2022-11-16Two particles \( A \) and \( B \), each of mass \( m \) are kept stationary by applying a horizo...
2022-11-16\( x \) के सापेक्ष अवकल गुणांक ज्ञात कीजिए- \[ \frac{x^{2} \sin x}{1-x} \]
2022-11-16A man of mass \( m \) has fallen into a ditch of width \( d \). Two of his friends are slowly pu...
2022-11-16What is atavism? Give some examples.
2022-11-16A particle is projected at \( t=0 \) from a point on the ground with certain velocity at an angl...
2022-11-16For the situation shown in figure, mark the correct options. (a) Angle of friction is \( \tan ^{...
2022-11-16Sel ect the incorrect statement. (A) A mino acids are substituents methanes. (B) Glycerol is a t...
2022-11-16Directions : Choose the correct option. (a) If both Assertion and Reason are true and the Reason...
2022-11-16A magnetic field can be represented by a set of magnetic lines of force. If the lines are spaced...
2022-11-16A block of mass \( m \) slides along the track with kinetic friction \( \mu \). A man pulls the ...
2022-11-16The major components of an ecosystem are : (A) food chain and decomposers (B) mineral cycling an...
2022-11-16\( \| \stackrel{2 \mathrm{Fe}^{+3}}{\longrightarrow} \); Product of the reaction is: (A) Content...
2022-11-16Directions: Choose the correct option. (a) If both Assertion and Reason are true and the Reason ...
2022-11-16Walking legs in Prawn : (A) 5 pairs (B) 8 pairs (C) 13 pairs (D) 19 pairs
2022-11-16Two blocks of mass \( m=5 \mathrm{~kg} \) and \( M=10 \mathrm{~kg} \) are connected by a string ...
2022-11-16आनुवंशिकी में टी०एच० मॉर्गन के योगदान का संक्षेप में उल्लेख कीजिए?
2022-11-16The Golgi components are bound by (A) Single unit membrane (B) Double unit membrane (C) Cisterna...
2022-11-16System shown in figure is in equilibrium. Find the magnitude of net change in the string tension...
2022-11-16A man pulls a block of mass equal to himself with a light string. The coefficient of friction be...
2022-11-16For the situation shown in figure, mark the correct options. (a) At \( t=3 \mathrm{~s} \), pseud...