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creativ13 [48]
3 years ago
11

An airplane flies 40km directly south in 10 minutes and 20 km directly east in five minutes, its average speed is:

Physics
2 answers:
blondinia [14]3 years ago
8 0
Average speed = total distance / total time
total distance = 40 + 20 = 60km
total time taken = 10 + 5 = 15 minutes
Average speed = 60/15 = 4km/min
Zina [86]3 years ago
3 0

Answer:

D. 4km/min

Explanation:

Since the question deals with "speed" and not "velocity", the direction does not matter.

the plane covers 40 + 20 km=60km in 10mins +5 mins=15mins

60 km - 15 mins

1min- 60÷15= 4 mins

therefore, your answer is D. 4km/min

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When a driver presses the brake pedal, his car can stop with an acceleration of 5.4 m/s2. How far will the car travel while comi
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3 0
3 years ago
Danny Diver weighs 500 N and steps off a diving board 10 m above the water. Danny hits the water with kinetic energy of
Morgarella [4.7K]

Answer:

Danny hits the water with kinetic energy of 5000 J.

Explanation:

Given that,

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F = 500 N

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h=10 m

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Learn more about Kinetic energy here:

<u>brainly.com/question/15587458</u>

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7 0
2 years ago
10 points
MariettaO [177]

Answer:

true

Explanation:

yes because I said so

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Katyanochek1 [597]

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