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boyakko [2]
3 years ago
10

Which of the following is the main difference between speed and velosity? A) speed is measured over time B) velocity has both sp

eed and direction C) speed has direction and velocity D) speed is constant
Physics
1 answer:
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement. Put another way, speed is a scalar value, while velocity is a vector.

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a train leaves a station heading east at 50 mph from that same station a car drives north at a speed of 30mph after 3 hours how
Alecsey [184]

Answer:

d = 175 miles

Explanation:

Train is moving towards East with constant speed of 50 mph

While car is moving at speed of 30 mph

so after t = 3 hours

the distance moved by the train is given as

d_1 = vt

d_1 = (50)(3) = 150 miles

at the same time the distance moved by the car is given as

d_2 = 30(3) = 90 miles

now we know that both car and train is moving perpendicular to each other

So the distance between them after t = 3 hours is given as

d= \sqrt{d_1^2 + d_2^2}

d = \sqrt{150^2 + 90^2}

d = 175 miles

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Shkiper50 [21]

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7 0
2 years ago
Dimensionally, which of the following could be a velocity? *
astra-53 [7]

Answer:

5 meters per second

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