Question

A hammer of mass 200g is dropped from the top of the roof of a two-storey building to the ground. Another hammer of equal mass fell from the coffee table ground. Given that the height of the two-storey building and the coffee table are 10m and 1.2m respectively. Show that a hammer dropped from the two-storey building roof does more work than a hammer falling from a coffee table​

Answer 1

Answer:

211.2

Explanation:

200+10+1.2

=211.2

Answer 2

Answer:

w1= f×d

(ma)×d

0.2×9.8×10

19.6 J

Explanation:

The formula to get work is the product of force and displacement. To get the force you multiply your mass by gravity which is constant 9.8 but at some points it's 10. Displacement is already given in the question