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3 years ago

What is the average speed in 4 seconds going 8 meters

Physics

2 answers:

gulaghasi [49]3 years ago

6 0

Answer:

Explanation:

speed is define as rate of change of distance or displacement

v=s/t

s=8 m

t=4s

v=8/4

v=2 m/s

Ksenya-84 [330]3 years ago

4 0

The formula for speed is distance over time or s = d/t
Distance = 8m or meters
Time: 4s or seconds
So s = 8/4
s = 2m/s or meters per second

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three condensers are connected in series across a 150 volt supply. The voltages across them are 40,50 and 60 volts respectively,

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Explanation:

Given that,

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3 years ago

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3 years ago

A car is driving away from a crosswalk. The formula d = t 2 + 2 t expresses the car's distance from the crosswalk in feet, d , i

Ede4ka [16]

Answer:

1) No, the car does not travel at constant speed.

2) V = 9 ft/s

3) No, the car does not travel at constant speed.

4) V = 5.9 ft/s

Explanation:

In order to know if the car is traveling at constant speed we need to derive the given formula. That way we get speed as a function of time:

V(t) = 2*t + 2 Since the speed depends on time, the speed is not constant at any time.

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4 years ago