Question

9 Solve
Q.9. A body of mass 2 kg falls from a height of 20 m. What is the loss in potential energy :-
(1) 400 J
(2) 300 J
(3) 200 J
(4) 100 J

Answer 1

loss in potential energy=mgh
=2kg.20m.10m/s^2
=400J
correct option is (1)

Answer 2

Answer:

1)400J

Explanation:

M=2KG

H=20M

LOSS IN POTENTIAL ENERGY=MGH

                                                  =2x10x20

                                                  =400J