Question

20 question pleas tell​

Answer 1

I can explain u how to do it

If I'm wrong...I'm really sorry

So 1st of all to find Displacement

use the 3rd eq. of motion

V²-U²=2as

solve it and put A as 10 or 9.8 ( gravitational acc.)

Once you get the Displacement

put it into

To find force ==>

Use Force = ma

m is given and a is 10 or 9.8

Find the force

then,

work done = Force × Displacement

U will get the answer