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3 years ago

If the rock was going 90m/s when it hit the ground. How many seconds would it have been falling for?

Physics

1 answer:

zhenek [66]3 years ago

8 0

Answer:

it will hit 80

Explanation:

because evey sec

is 10

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How much kinetic energy is in a punch thrown at 30 m/s? The fist and arm weighs 6 lbs. (1 lb= 2.2 kg)

zvonat [6]

Answer:

5940J

Explanation:

KE = 1/2 mv²

KE = 1/2 13.2 * 30²

KE = 6.6*900

KE = 5940J

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3 years ago

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Explanation:

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1 year ago

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The distance covered is (4) times (the car's average speed during that time).

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3 years ago

What is the acceleration of a ball thrown vertically upward in the presence of Earth’s

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3 years ago

Convert 10 kilometers to feet.

ehidna [41]

Answer:

32,808.4 feet.

Explanation:

1 kilometer is equal to 3,280.84 feet.

3,280.84 feet × 10 feet = 32,808.4 feet

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3 years ago