Question

The work done against gravity in taking 10 kg.
mass at 1 m height in 1 s will be :-
(1) 49 J
(2) 98 J
(3) 196 J
(4) None of these​

Answer 1

Answer:

MASS(m)⇒10KG

GRAVITATIONAL FORCE(g)⇒9.8m/s~²

HEIGHT(h)⇒1m

Explanation:

NOW,we know that

                           WORK DONE⇒mgh

                                                  ⇒10×9.8×1

                                                    ⇒98 J

so,the right option is     (2)98 J

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