Question

a truck starts from rest and rolls down a hill with constant acceleration distance of 400 m. in 20 sec.
. find its acceleration. find the force acting on it if its mass is7 tonnes​

Answer 1

Answer:

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Answer 2

Answer:

Columnar epithelial cells are elongated and column-shaped and have a height of at least four times their width. Their nuclei are elongated and are usually located near the base of the cells. Columnar epithelium forms the lining of the stomach and intestines

Explanation:

this is your answer of first question hope it helps