To simulate car accidents, auto manufacturers study the collisions of moving cars with mounted springs of different spring constants. Consider a typical simulation with a car of mass $$1000$$ kg moving with a speed $$18.0$$ km/h on a smooth road and colliding with a horizontally mounted spring of spring constant $$6.25\times 10^3~{\mathrm{N/m}}$$. The maximum compression in the spring is:
1. $$3$$ m
2. $$0.2$$ m
3. $$1$$ m
4. $$2$$ m

Subtopic:  Elastic Potential Energy |
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To simulate car accidents, auto manufacturers study the collisions of moving cars with mounted springs of different spring constants. Consider a typical simulation with a car of mass 1000 kg moving with a speed of 18.0 km/h on a rough road and colliding with a horizontally mounted spring of spring constant If the coefficient of friction between road and tyre of the car, µ, to be 0.375. Maximum compression of the spring is:

1.   3.5 m

2.   2.0 m

3.   1.5 m

4.   2.5 m

Subtopic:  Elastic Potential Energy |
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