Ava visited grand canyon. She was very impressed by the rock formations and decided to sketch them. What type of rock did Ava se
1 answer:
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Answer:
6.21 m/s
Explanation:
Using work energy equation then
where d is displacement from initial to final position, v is velocity and subscripts a and b are position A and B respectively, m is mass of collar, g is acceleration due to gravity
Substituting 1 Kg for m, 0.4m for h, as 0, 9.81 for g then