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WARRIOR [948]
3 years ago
14

A boy weighs 40 kilograms. He runs at a velocity of 4 meters per second north. Which is his momentum?

Physics
1 answer:
Artist 52 [7]3 years ago
4 0
The formula for momentum is mass times velocity. Simply, we just multiply the given values:
p = mv
p = 40 kg x 4 m/s
p = 160 kg m/s

Other units for momentum is N s.
p = 160 N s 
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Um avião, após deslocar-se 120 km para nordeste (NE), desloca-se 160 km para sudeste (SE). Sendo um quarto de hora o tempo total
Svetach [21]

Answer:

E) 800 km/h

Explanation:

The computation of the average vector velocity module of the plane, at that time is shown below:

The displacement vector is

d^2 = d1^2 + d2^2

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d1 = northeast displacement

d2 = southeast displacement

Now

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= 14400 + 2560

= 40000

= √40000

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V = ΔS ÷ Δt

= 200 ÷ 1 ÷ 4

= 200 × 4

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3 years ago
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NikAS [45]

Answer:

Option B. Coulomb Repulsion

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