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3 years ago

Odyssey Quiz

Physics

1 answer:

Novosadov [1.4K]3 years ago

4 0

Answer:

OD) 3.7 kg-m/s

Explanation:

given:

velocity of baseball, v = 25 m/s

angle below horizontal, Θ = $8^{o}$

mass of baseball, m = 0.15 kg

Generally, momentum (p) is given by equation:

p = mv

Horizontal component is given by

p = mv cosΘ

= 0.15 kg x 25 m/s x cos $8^{o}$

= 3.71 kg- m/s

Hence horizontal component of momentum is OD) 3.7 kg-m/s

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The angle between the two force of magnitude 20N and 15N is 60 degrees (20N force being horizontal) determine the resultant in m

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A) The resultant force is 30.4 N at $25.3^{\circ}$

B) The resultant force is 18.7 N at $43.9^{\circ}$

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$\theta=tan^{-1}(\frac{F_y}{F_x})=tan^{-1}(\frac{13.0}{13.5})=43.9^{\circ}$

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