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- Homework Statement
- a particle of mass m is subjected to a force F=F°(cos(t)i+sin(t)j) if initially the particle was at rest the kinetic energy of the particle as a function of time is fgiven by

- Relevant Equations
- a=dv/dt

I got acceleration by dividing force by m then replaced a by dv/dt and then integrated it to get velocity as a fxn of time and hence got kinetic energy but problem is my ans does not match with any option can someone please compare their ans