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Question

Physics Question on projectile motion

A particle of mass 100 g is projected at time 𝑡=0𝑡=0 with a speed 20ms120\,ms^{−1} at an angle 45°45° to the horizontal as given in the figure. The magnitude of the angular momentum of the particle about the starting point at time 𝑡=2s𝑡=2 s is found to be K kgm2/s.\sqrt{K}\ kgm^2/s. The value of KK is ________. (Take g=10g=10 ms2ms^{−2})projectile motion

Answer

The answer is 800.