Question 59: 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: