Question

A body of mass 0.1 kg thrown upwards reaches a maximum height of 10 m . calculate the work done by the gravitational force





answer is -9.8 ​

Answer 1

Answer:

Answer will be - 10 m/s square if you round of it

Explanation:

work done =energy which is potential energy here

so work done now=mgh=[0.1×(-10)×9.8] joules

=[0.1×(-10)×10] joules ➡️ [if you round of]

=[1/10×(-10)×10] joules

= (-10) joules ➡️Answer.

Answer 2

Here,We have mass and height given and we know the value of g. And one thing that we take value of g in negative because it goes up.If it falls towards centre of earth,then we take value of g in positive.

I hope your prblm will be solved....