How much work does a 60kg person do in walking up 5m of stairs

Physics

1 answer:

Nataliya [291]3 years ago

8 0

Answer:

If I’m correct 300 joules

Explanation:

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Natali5045456 [20]

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4 0

3 years ago

A 13 kg rock is sitting on a cliff. If the rock has 3,500 joules of potential energy, what is the height of the cliff in meters?

Bezzdna [24]

<u>Answer:</u>

The height of the cliff in meters = 27.44

<u>Explanation:</u>

The potential energy of a body is given by the expression, PE = mgh, where m is the mass of the body, g is the acceleration due to gravity value and h is the height of the body.

Here we have mass of rock = 13 kg

Potential energy = 3500 J

Acceleration due to gravity = $9.81m/s^2$

Substituting 3500 = 13 * 9.81 * h

h = 27.44 meter

The height of the cliff in meters = 27.44

7 0

4 years ago

Select the correct answer.

arsen [322]

Answer:

Explanation:

Force is a vector quantity. So, it has magnitude and direction which can also be describe as strength and direction

5 0

3 years ago

Read 2 more answers

The orbital radius of the Earth (the average Earth-Sun distance) is 1.496 × 1011 m. Mercury’s orbital radius is 5.79 × 1010 m an

sineoko [7]

Answer:

Earth: $t = 498.667\,s$ , Mercury: $t = 193\,s$ , Pluto: $t = 19700\,s$

Explanation:

The light travels at a constant speed of approximately $3\times 10^{8}$ meters per second. The time ( $t$ ), in seconds, required for light to travel a given distance is: