Answer:
the answer to the question is 13
Answer:
The approximate spring constant is 
Explanation:
From the question we are told that
The mass of the person is 
The dip of the car is 
Generally according to hooks law

here the force F is the weight of the person which is mathematically represented as

=> 
=> 
=> 
=> 
true true tire true tire ture
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Answer:
28.7%
Explanation:
efficiency = work output /work input × 100