Which is an example of speed?

Physics

2 answers:

agasfer [191]4 years ago

6 0

A dog runs an average of 8 mph
or
cindy biked westward at 30 km/h

geniusboy [140]4 years ago

4 0

<span>Cindy biked westward at 30 km/h.
Velocity. (We know both the speed AND the direction.)

A rock is to the left of a flowerpot.
Relative location.

A dog runs an average of 8 mph.
Speed (distance divided by time)

Leo lives 2 miles north of Andre.
Relative location.</span>

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Answer:

The magnitude of the force is 0.7255kN

Explanation:

The elevator floor acts on the person with a force that is due to the gravitational acceleration less the downward acceleration of the elevator:

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in other words, considering the elevator floor as a reference frame in the Earth's gravitational field, the person's weight decreases due to the downward acceleration, as follows:

$F = m\cdot(g-a)$