JEE Exam  >  JEE Questions  >  A small block of mass 1 kg is released from r... Start Learning for Free
A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shown in the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)
Q.4. The magnitude of the normal reaction that acts on the block at the point Q is
 
  • a)
    7.5N
  • b)
    8.6N
  • c)
    11.5N
  • d)
    22.5N
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A small block of mass 1 kg is released from rest at the top of a rough...
Loss in P.E. = mg × 40 sin 30° = 200 J
Work done in over coming friction = 150 J
∴ K.E. possessed by the particle = 50 J
From (1) and (2) (a) is the correct option.
View all questions of this test
Explore Courses for JEE exam

Similar JEE Doubts

A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer?
Question Description
A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A small block of mass 1 kg is released from rest at the top of a rough track. The track is a circular arc of radius 40 m. The block slides along the track without toppling and a frictional force acts on it in the direction opposite to the instantaneous velocity. The work done in overcoming the friction up to the point Q, as shownin the figure below, is 150 J. (Take the acceleration due to gravity, g = 10 ms–2)Q.4.The magnitude of the normal reaction that acts on the block at the point Q isa)7.5Nb)8.6Nc)11.5Nd)22.5NCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev