sobell7725

15.12.2020 • 

Physics

You throwa javelin at a speed of 18 m/s at an angle of 30 above the horizontal. A: how far does the javelin travel vertically?

B: if you threw the javelin from an original height of 2m, how long does it take the javelin to reach the ground?

C: how far does the javelin travel horizontally from where you threw it?

Ответ:

jeanetteelliotp9ru6m

08.12.2020

Physics

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5.8 kg m/s

Identify the given information.
m = 0.145 kg
v = 40.0 m/s

Choose which formula you should use. In this case, you are finding momentum.
p = mv, where p is momentum.

Substitute and solve.
p = 0.145 kg x 40.0 m/s
p = 5.8 kg m/s

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