B M Sharma Solutions for Chapter: Work, Energy and Power, Exercise 71: Archives
B M Sharma Physics Solutions for Exercise - B M Sharma Solutions for Chapter: Work, Energy and Power, Exercise 71: Archives
Attempt the practice questions on Chapter 8: Work, Energy and Power, Exercise 71: Archives with hints and solutions to strengthen your understanding. PHYSICS For Joint Entrance Examination JEE (Advanced) Mechanics I solutions are prepared by Experienced Embibe Experts.
Questions from B M Sharma Solutions for Chapter: Work, Energy and Power, Exercise 71: Archives with Hints & Solutions
Find the value of k. When a body of mass. Is moving in a medium and experiences a frictional force Its initial speed is If, after Its energy is .
A time dependent force, acts on a particle of mass . If the particle starts from rest, the work done by the force during the first will be,
The work done on a particle of mass by a force ( being the constant of appropriate dimensions) when the particle is taken from the point to the point along a circular path of radius about the origin in the plane is,
A particle of mass is initially at rest at the origin. It is subjected to a force and starts moving along the -axis. Its kinetic energy changes with time as , where is a positive constant of appropriate dimensions. Which of the following statements is (are) true?
A light inextensible string that goes over a smooth fixed pulley as shown in the figure connects two blocks of masses and Taking , find the work done (in joules) by the string on the block of mass during the first second after the system is released from rest.
A block of mass is attached to a spring of force constant . The coefficient of friction between the block and the floor is . Initially the block is at rest and the spring is unstretched. An impulse is given to the block as shown in the figure. The block slides a distance of and comes to rest for the first time. The initial velocity of the block in is . Then is
A particle of mass is moving in one dimension under a force that delivers a constant power to the particle. If the initial speed (in ) of the particle is zero, the speed (in ) after is
Consider an elliptically shaped rail in the vertical plane with and A block of mass is pulled along the rail from to with a force of which is always parallel to line (see the figure given). Assuming no frictional losses, the kinetic energy of the block when it reaches is . The value of is (take acceleration due to gravity )