Question
An object moving along horizontal x-direction with kinetic energy 10 J is displaced through x=(3 i ) m by the force F =(-2 i +3 j ) N . The kinetic energy of the object at the end of the displacement x is
NEET
Physics
Work Power Energy
2024
NEET 2024 (Re-NEET)
NEET Physics Question (2024) — Solution
Options
- A. 10 J
- B. 16 J
- C. 4 J
- D. 6 J
Answer
C. 4 J
Step-by-step solution
Work energy theorem, W_ al = K . E (W_ al = . work done by all forces ) K_f-K_l= F x K_f-10=(-2 i +3 j ) (3 i ) K_f-10=-6 K_ f =4 ~J
Related: Physics — Work Power Energy · All PYQ Banks