STANDARDPhysics-Work, Energy and Power
STANDARD Physics Conservation of Energy MCQ Question
Type: MCQ-conceptual-Medium-Class 11
A car of mass 1000 kg moving with a speed 18 km h⁻¹ on a smooth road collides with a horizontally mounted spring of spring constant 6.25 × 10³ N m⁻¹. The maximum compression of the spring is
A
1 m
B
2 m
C
3 m
D
4 m
Correct Answer
Option B
Detailed Explanation
At maximum compression, the kinetic energy of the car is converted entirely into the potential energy of the spring. Using the formula ½mv² = ½kx², we find x = √(mv²/k). Substituting the given values, x = 2 m.
Found an issue with this question?