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Kinematics

Problem 1.15

An elevator car whose floor-to-ceiling distance is equal to \(2.7 \mathrm{~m}\) starts ascending with constant acceleration \(1.2 \mathrm{~m} / \mathrm{s}^{2} ; 2.0 \mathrm{~s}\) after the start a bolt begins falling from the ceiling of the car. Find: (a) the bolt's free fall time; (b) the displacement and the distance covered by the bolt during the free fall in the reference frame fixed to the elevator shaft.

Reveal Answer
 (a) 0.7 s; (b) 0.7 and 1.3 m respectively. \text { (a) } 0.7 \mathrm{~s} ; \text { (b) } 0.7 \text { and } 1.3 \mathrm{~m} \text { respectively. }
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