Answer:
10.2 kg
Explanation:
Assuming the object is on Earth:
w = mg
m = w / g = 100 / 9.81 = 10.2kg
You did 150.j of work lifting a 120.N back
Don’t know sorry I’m just trying not a good person
They will both hit the ground at the same time because gravitational acceleration for all objects is the same.
all ik is it has to do with speed once you find out the formula for speed you can find out the answer