One comparison is that both people in the cars (whether they were wearing a seat belt or not) is that they sustain injuries. People are obviously going to get hurt in a crash. A prime difference though is how big of an injury it is. People who were wearing seat belts at the time of a crash are less likely to have serious injuries, while those who weren't wearing seat belts have a higher possibility of sustaining really serious injuries.
Answer:
389 kg
Explanation:
The computation of mass is shown below:-

Where K indicates spring constant
m indicates mass
For the new time period

Now, we will take 2 ratios of the time period




= 0.889 kg
Since mass to be sum that is
= 0.889 - 0.500
0.389 kg
or
= 389 kg
Therefore for computing the mass we simply applied the above formula.
Answer:
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The answer is D=M/V hope it helps!!