AP EAMCET20226 Jul 2022Morning ShiftPhysicsWork, Power and EnergyActual
A force of 10 ~N acting at an angle on a particle produces a displacement of (3 i -4 ) m . Due to this force, if the kinetic energy of the particle is decreased by 25 joule, then the angle between the force and the displacement is
Options
- A⁻¹ ( 1 3 )
- B30^
- C120^
- D⁻¹ ( 3 4 )
Correct answer
C. 120^
Step-by-step solution
aligned & Work done = F r & -25= Fr [ Work done = K ] & -25=10 5 & =-1 / 2 & =120^ aligned