A body thrown upwards reaches a height and comes back. Which of the following is true about the acceleration due to gravity ?

Question

A body thrown upwards reaches a height and comes back. Which of the following is true about the acceleration due to gravity ? (A) It varies continuously with the maximum at the beginning and zero at the top. (B) It only changes sign when the body is at the top (C) It remains constant throughout (D) it varies but never changes sign.

Tardigrade Admin · Accepted Answer

g is a vector quantity and it acts always towards the centre of earth. It is taken as negative if the direction of motion is away from ground. Its magnitude changes with height.

Q. A body thrown upwards reaches a height and comes back. Which of the following is true about the acceleration due to gravity ?

It varies continuously with the maximum at the beginning and zero at the top.

It only changes sign when the body is at the top

It remains constant throughout

it varies but never changes sign.

g is a vector quantity and it acts always towards the centre of earth. It is taken as negative if the direction of motion is away from ground. Its magnitude changes with height.