Question

write the correct answer or i will report
8000J of work was done in raising a body of mass 160 kg. The height to which it was raised is

Answer 1

Answer:

W=mgh+  

2

1

​  

mv  

2

 

1620=15×10×10+  

2

1

​  

×15×v  

2

 

⟹v=4 m/s

Explanation:

Answer 2

Answer:

W=mgh+  

2

1

​  

mv  

2

 

1620=15×10×10+  

2

1

​  

×15×v  

2

 

⟹v=4 m/s

Explanation: