Question

Read following situations carefully.

(i) A ball is falling from a tower downward to the ground

(ii) A stone is thrown by a man vertically upwards

(iii) A block is sliding on a horizontal surface.

In these conditions, where the work done by gravity is always positive? [1]

(1) Only (i)

(2) Only (ii)

(3) Both (i) and (ii)

(4) All (i), (ii) and (iii)​

Answer 1

Answer:

All (I), (ii),(iii)

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Answer 2

Answer:

Frist option is the correct answer

Explanation:

in second there is no displacement covered so it is incorrect