A body of mass 0.5 kg is projected under gravity with a speed of 98 m/s at an angle of 30 ∘ with the horizontal. The change in momentum (in magnitude) of the body is Options: A . &nbsp24.5 N–s B . &nbsp49.0 N–s C . &nbsp98.0 N–s D . &nbsp50.0 N–s

A body of mass 0.5 kg is projected under gravity with a speed of 98 m/s at an an

Question

A body of mass 0.5 kg is projected under gravity with a speed of 98 m/s at an angle of

30^{\circ}

with the horizontal. The change in momentum (in magnitude) of the body is

Options:

A . 24.5 N–s

B . 49.0 N–s

C . 98.0 N–s

D . 50.0 N–s

Answer: Option B
:
B
Change in momentum between complete projectile motion =

2 m u s i n θ = 2 \times 0.5 \times 98 \times s i n 30^{\circ} = 49 N - s

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Komal Jha 2021-11-14 15:28:43

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