Question

displacement (S) =t³-6t². find then acceleration when body is at rest

Please solve with full solution ​

Answer 1

Answer:

use differential calculus

Explanation:

d(S)/dt = 3t^2-12t (this is velocity V)

therefore,

(V) = 3t^2-12t

to get acceleration, differentiate it once again,

d(V)/dt = 6t-12 (this is acceleration A)

therefore,

A = 6t-12

Answer 2

Explanation:

This is why ice cubes float in water. Second, and slightly more interestingly: Most icebergs actually contain a lot of air.