Question 60: Work, Energy and Power & Circular Motion

Question

A body of mass $50 \mathrm{~kg}$ is lifted to a height of $20 \mathrm{~m}$ from the ground in the two different ways as shown in the figures. The ratio of work done against the gravity in both the respective cases, will be :

Accepted Answer

Work done in both cases is equal to $-m g \Delta h$
$	herefore \quad 	ext { Ratio }=1: 1$

Answer

$2: 1$

Answer

$\sqrt{3}: 2$

Answer

$1: 1$

Answer

$1: 2$

Work, Energy and Power & Circular Motion

A body of mass 50 \mathrm{~kg} is lifted to a height of 20 \mathrm{~m} from the ground in the two different ways as shown in the figures. The ratio of work done against the gravity in both the respective cases, will be :

Choose the correct answer: