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Kitty [74]
3 years ago
15

What is the velocity in meters per second of a runner who runs exactly 110 m toward the beah in 72 seconds?

Physics
2 answers:
rjkz [21]3 years ago
8 0
B) 1.53 m/s towards the beach
Vitek1552 [10]3 years ago
6 0

Answer:

B). 1.53 m/s toward the beach

Explanation:

Velocity consists of a) a magnitude (the speed) and b) a direction.

The speed is given by the ratio between the distance covered and the time taken:

v=\frac{110 m}{72 s}=1.53 m/s

while the direction is given in the problem, it is the same as the displacement (toward the beach).

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Desde el balcón de un edificio se deja caer una manzana y llega a la planta baja en 5 s. ¿Desde qué piso se dejó caer, si cada p
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Explanation:

I will answer this in English.

We know that the apple needs 5 seconds to reach the ground.

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a = -g

for the velocity, we integrate the acceleration over time, and as the apple is dropped, we do not have any initial velocity, so we do not have a constant in the integration:

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