Embibe Experts Solutions for Chapter: Work, Energy and Power, Exercise 1: NDA & NA EE 2019 Paper 1 General Ability Test

A rigid body of mass $2 \mathrm{kg}$ is dropped from a stationary balloon kept at a height of $50 \mathrm{m}$ from the ground. The speed of the body when it just touches the ground and the total energy when it is dropped from the balloon are respectively.

(Take, acceleration due to gravity, $\mathrm{g}=9.8 \mathrm{m}/{\mathrm{s}}^2$)

The correct sequence of energy transfer that occurs when an apple falls to the ground is

Which one of the following forces is non-central and non-conservative?