WILL AWARD BRAINLLIEST!!!!

Physics

2 answers:

Wittaler [7]2 years ago

8 0

Answer:

8 feet per second

Explanation:

40 divide by 5=8

Hope this helps :D

zheka24 [161]2 years ago

5 0

Answer: The speed of the dog is 8 ft/s

Explanation:

Speed is defined as the ratio of distance traveled to the time taken.

To calculate the distance traveled by boat, we use the equation:

$\text{Speed of the dog}=\frac{\text{Distance traveled}}{\text{Time taken}}$

We are given:

Distance traveled by dog = 40 ft

Time taken = 5 seconds

Putting values in above equation, we get:

$\text{Speed of the dog}=\frac{40ft}{5s}\\\\\text{Speed of the dog}=8ft/s$

Hence, the speed of the dog is 8 ft/s

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1 year ago

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solniwko [45]

Answer:

5235.84 kg

Explanation:

There is one theorem - whose proof I will never remember without having to drag calculus in there - that says that the variation of momentum is equal to the force applied times the time the application last.

$F\Delta t = m \Delta v$ As long as the engine isn't ejecting mass - at this point it's a whole new can of worm - we know the force, we know the variation in speed, time to find the mass. But first, let's convert the variation of speed in meters per second. The ship gains 250 kmh, $\Delta v = 69.4 m/s$ ;