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Dafna11 [192]
3 years ago
8

5. A rolling ball is moving with a velocity of 8 m/s, on a frictionless surface. No

Physics
1 answer:
Sonja [21]3 years ago
6 0
The ball is traveling at 8 meters per second, so if the ball is traveling for 3 seconds you must multiply 8 times 3, 24.

The answer is 24 m/s.
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Answer:

7,166 hrs =430  minutes

Explanation:

Since both train are on the same track, going one towards the other, the relative speed is the addition of both, then the time they need to meet, and consistently crash, is the time that (65mph + 55 mph)=120mph need to travel the total distance of 860 miles, of course in this case one part is traveled by the first train and the rest by the other. Then to find the time we use a three rule

1 h --->120mi

X ---->860mi, then X=(860 mi* 1h)/120 mi = 43/6 hrs= 7,16666 hrs, turning this into minutes need that we notice 1h=60min, then 43/6 hrs *60 min/hrs = 430 minutes.

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3 years ago
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D FOUR years old hope this helps


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Explanation:

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