A person stands in an elevator. Starting at rest at $t = 0$ the elevator moves upward, coming to rest again at time $t = t_{0}$ . The acceleration of the elevator during this period is shown graphically below. Which of the following statement(s) is/are CORRECT?

Question

TestHub · Accepted Answer

a − α = t 0 ​ − 2 α ​ ( t − 0 ) d t d v ​ = a = t 0 ​ − 2 α ​ + α d t d s ​ = v = t 0 ​ − α ​ t 2 + α t ​ s = 3 t 0 ​ − α t 3 ​ + 2 α t 2 ​ ​ t = t 0 ​ ​ s = 6 α t 0 2 ​ ​ ​ Δ v = area under a-t graph till t = 2 t 0 ​ ​ Δ v = 2 1 ​ 2 t 0 ​ ​ α Δ v = 4 α t 0 ​ ​ v f ​ − v i ​ = 4 α t 0 ​ ​ v f ​ = v max ​ = 4 α t 0 ​ ​

Physics - Kinematics Question with Solution | TestHub

Options:(select one or more)

Doubts & Discussion