Physics

Problem

A body of mass 10 kg is projected at an angle of

45^\circ

with the horizontal. The trajectory of the body is observed to pass through a point (20, 10). If T is the time of flight, then its momentum vector, at time

t = \frac{T}{\sqrt{2}}

, is \_\_\_\_\_\_ [Take

g = 10 \text{ m/s}^2

] [Main July 27, 2022 (II)] (a)

100\hat{i} + (100\sqrt{2} - 200)\hat{j}

(b)

100\sqrt{2}\hat{i} + (100 - 200\sqrt{2})\hat{j}

(c)

100\hat{i} + (100 - 200\sqrt{2})\hat{j}

(d)

100\sqrt{2}\hat{i} + (100\sqrt{2} - 200)\hat{j}

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