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3 years ago

How many seconds does it take for net force 20N to change the velocity to a 5kg mass by 2m/s?

Physics

1 answer:

castortr0y [4]3 years ago

5 0

Answer:

0.5 second

Explanation:

We are given that

Force, F=20 N

Mass, m=5 kg

Change in velocity,=2m/s

We have to find the time taken to change the velocity .

We know that

Force, F=ma

Where

Acceleration, a=Change in velocity/time

$a=\frac{2}{t}$

Substitute the values

$20=5\times \frac{2}{t}$

$t=\frac{5\times 2}{20}$

$t=0.5 s$

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Answer:

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2 years ago

Charlie runs at an average speed of 6.5 km/hr. If he runs for 1.5 hours, how far has he traveled?

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Answer:

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2 years ago

If an airplane is flying directly north at 300.0 km/h, and a crosswind is hitting the airplane at 50.0 km/h from the east, what

Rashid [163]

Answer:

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Explanation:

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To find the magnitude of the final velocity vector (speed) we need to apply the Pythagorean theorem in a right angle triangle with sides: 300 and 50, and find its hypotenuse:

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