Question

A ball of mass 0.2 kg is thrown vertically upwards by applying a force by hand if the hand moves 0.2 while applying the force and the ball goes up to 2 metre height find the magnitude of the force (considered g=10ms-²)

Answer 1

Answer:

10×0.2 kg

and ball moves in 20 meters

Answer 2

Answer:

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↠ A ball of mass 0.2 kg is thrown vertically

by applying a force by hand.

↠ hand moves 0.2 m while applying the

force and the ball goes 2 m heights

↠ g = 10 m/s²

$\huge\pink{\underline{\boxed{\mathbb{Given}}}}$]

↠ Mass of ball = 0.2 kg.

↠ Total height = 0.2 + 2 = 2.2 m

↠ Total displacement = 0.2 m

$\huge\pink{\underline{\boxed{\mathbb{To Find}}}}$]

The magnitude of the force.

SoLuTioN :--

↠ Work done = Difference in potential difference.

↠ FS = MGH.

↠ F = MGH / S

↠ F = 0.2 X 10 X 2.2 / 0.2

↠ F = 22 N