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Number 4 and 5 show all work 4) When two 85-kg persons sit in a 1000-kg car, it is lowered by 2 cm. Estimate the

Number 4 and 5 show all work

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4) When two 85-kg persons sit in a 1000-kg car, it is lowered by 2 cm. Estimate the spring constant of the suspension. What simplifying assumptions do you need to make? 5) A spring gun with k = 90.0 N/m is compressed by 5 cm. What is the exit speed of a 2.10-g projectile

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