Question

Example 1: Calculate the work done to
take an object of mass 20 kg to a height of
10 m.
(g = 9.8 m/s2)​

Answer 1

Answer:

solution given below

Step-by-step explanation:

Calculate the work done to take an object of mass 20 kg to a height of 10m

Calculate the work done to take an object of mass 20kg to a height of 10m.

W= force × displacement.

= 200 × 10.

= 2000 j.

Answer 2

Answer:

Zero..

Step-by-step explanation:

Work f.ds.cos)theta)...Cos90°=0

so Zero