Question

please answer this question in process​

Answer 1

Answer:

3.2g=m

Explanation:

Here

Work Done = Kinetic energy

W.D = 1/2×m×v²

W.D=1000j, v=90×5/18

v=25m/s

So,

1000=1/2×m×(25)²

1000×2

________=m

25×25

3.2=m