21. Explain why a passenger who is not wearing a safety belt will likely hit the windshield in a head-on collision. please answe
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Here we can say that by energy conservation principle
Elastic potential energy of spring will convert into kinetic energy of the block
so here we will have
we also know that
k = 360 N/m
x = 11 cm
m = 1.85 kg
now we will use all in above equation
so it will move with speed 2.17 m/s after separating from spring