A block of mass \( 2 \mathrm{~kg} \) is free to move along the \( x \)-axis. It is at rest and f...

Channel:
PW Solutions
Subscribers:
445,000
Published on ● Video Link: https://www.youtube.com/watch?v=ioTzEXCd3Ag


Duration: 2:51
1 views
0

A block of mass \( 2 \mathrm{~kg} \) is free to move along the \( x \)-axis. It is at rest and from \( t=0 \) onwards it is subjected to a timedependent force \( F(t) \) in the \( x \)-direction. The force \( F(t) \) varies with \( t \) as shown in the figure. The kinetic energy of the block after \( 4.5 \) seconds is
[IIT-JEE 2010]
(a) \( 4.50 \mathrm{~J} \)
(b) \( 7.50 \mathrm{~J} \)
(c) \( 5.06 \mathrm{~J} \)
(d) \( 14.06 \mathrm{~J} \)
šŸ“²PW App Link - https://bit.ly/YTAI_PWAP
šŸŒPW Website - https://www.pw.live



Other Videos By PW Solutions


2022-10-27A block of mass \( 10 \mathrm{~kg} \), moving in \( x \) direction with constant speed of \( 10 ...
2022-10-27300 Joule of work is done in sliding up a \( 2 \mathrm{~kg} \) block on an inclined plane to a h...
2022-10-27The ring \( R \) in the arrangement shown can slide along a smooth, fixed, horizontal rod \( X Y...
2022-10-27Which of the diagrams shown in figure most closely shows the variation in kinetic energy of the ...
2022-10-27A raindrop falling from a height \( h \) above ground, attains a near terminal velocity when it ...
2022-10-27Which of the diagrams in figure correctly shows the change in kinetic energy of iron sphere fall...
2022-10-27A particle which is constrained to move along the \( x \)-axis, is subjected to a force in the s...
2022-10-27A tennis ball is dropped on a horizontal smooth surface. It bounces back to its original positio...
2022-10-27Which of the diagrams shown in figure represent variation of total mechanical energy of a pendul...
2022-10-27Consider a rubber ball freely falling from a height \( h=4.9 \mathrm{~m} \) onto a horizontal el...
2022-10-27A block of mass \( 2 \mathrm{~kg} \) is free to move along the \( x \)-axis. It is at rest and f...
2022-10-27A particle of mass \( 4 \mathrm{~m} \) which is at rest explodes into three fragments. Two of th...
2022-10-27The graph between \( \sqrt{E} \) and \( 1 / p \) is ( \( E= \) kinetic energy and \( p= \) momentum)
2022-10-27A particle with total mechanical energy, which is small and negative, is under the influence of ...
2022-10-27The graph between the resistive force \( F \) acting on a body and the distance covered by the b...
2022-10-27The potential energy of a system is represented in the first figure. the force acting on the sys...
2022-10-27A body moves in a circular orbit of radius \( R \) under the action of a central force. Potentia...
2022-10-27Which of the following graphs is correct between kinetic energy \( (E) \), potential energy \( (...
2022-10-27A block of mass \( m \) slides from rest at a height \( H \) on a frictionless inclined plane as...
2022-10-27A particle is placed at the origin and a force \( F=k x \) is acting on it (where \( k \) is pos...
2022-10-27Figure below shows a small mass connected to a string, which is attached to a vertical post. If ...


Tags:
pw