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Dafna11 [192]
2 years ago
11

A car weighing 15,000 n is speeding down the highway at 90 km/h. what is its momentum?

Physics
2 answers:
Ratling [72]2 years ago
5 0
Okay. So the formula for this kind of question is p = mv, where p means momentum. So in this case, the mass is the weight and the velocity is the speed. Let’s multiply the numbers. 15,000 * 90 = 1,350,000. The car possesses 1,350,000 units of momentum.
BaLLatris [955]2 years ago
4 0
The momentum of the car:

p = m*V

m = F/g = 15 000 / 10 = 1 500 kg
V = 90 km/h = 25 m/s

p = 1 500 * 25 = 37 500 kg*m/s


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Europe and North America are moving apart by about 5 m per century. As the continents separate, new ocean floor is created along
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1. A boy walk 140 m due north, 85 m due east, 35 m due southeast, 38 m due west and then 19 m due northwest. Calculate the displ
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Answer:

141 m at 65.6° N of E

Explanation:

Let E be along the positive x axis of a unit circle

N = 90°

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east displacement

x = 140cos90 + 85cos0 + 35cos-45 + 38cos180 + 19cos135 = 58.313708... m

north displacement

y = 140sin90 + 85sin0 + 35sin-45 + 38sin180 + 19sin135 = 128.6862915... m

d = √(128.6862915² + 58.313708²) = 141.28216525... m

tanθ = 128.6862915 / 58.313708

θ = 65.622521...

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