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A block of mass 2 kg is free to move along the x-axis. It is at rest and from t = 0 onwards it is subjected to a time-dependent 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
  • a)
    4.50 J
  • b)
    7.50 J
  • c)
    5.06 J
  • d)
    14.06 J
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A block of mass 2 kg is free to move along the x-axis. It is at rest a...
Area under F – t graph gives the impulse or the change in the linear momentum of the body. As the initial velocity (and therefore the initial linear momentum) of the body is zero, the area under F – t graph gives the final linear momentum of the body.
Area of ΔAOB 
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A block of mass 2 kg is free to move along the x-axis. It is at rest and from t = 0 onwards it is subjected to a time-dependent 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 isa)4.50 Jb)7.50 Jc)5.06 Jd)14.06 JCorrect answer is option 'C'. Can you explain this answer?
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A block of mass 2 kg is free to move along the x-axis. It is at rest and from t = 0 onwards it is subjected to a time-dependent 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 isa)4.50 Jb)7.50 Jc)5.06 Jd)14.06 JCorrect answer is option 'C'. 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 block of mass 2 kg is free to move along the x-axis. It is at rest and from t = 0 onwards it is subjected to a time-dependent 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 isa)4.50 Jb)7.50 Jc)5.06 Jd)14.06 JCorrect answer is option 'C'. 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 block of mass 2 kg is free to move along the x-axis. It is at rest and from t = 0 onwards it is subjected to a time-dependent 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 isa)4.50 Jb)7.50 Jc)5.06 Jd)14.06 JCorrect answer is option 'C'. Can you explain this answer?.
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