A particle of mass m is initially at rest at the origin. It is subjected to a force and…
Physics · JEE Advanced · NTA Exams — Work, Energy and Power
A particle of mass m is initially at rest at the origin. It is subjected to a force and starts moving along the x-axis. Its kinetic energy K changes with time as dK/dt = gt, where g
is a positive constant of appropriate dimensions. Which of the following statements is (are) true?
is a positive constant of appropriate dimensions. Which of the following statements is (are) true?
- The force applied on the particle is constant
- The speed of the particle is proportional to time
- The distance of the particle from the origin increases linearly with time
- The force is conservative
Answer
(B) The speed of the particle is proportional to time
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