People jump from much greater heights than this, explain how this is possible

Physics

1 answer:

dusya [7]4 years ago

5 0

Answer:

Explanation:

When people jump from greater height, energy gets absorbed into the muscles as potential. And when the person flexes her legs on landing energy is trans formed not only into elastic energy in the bones, but also into elastic energy in other tissues and into thermal energy.

air resistance is very small hence, negligible. So, the statement a is correct and rest are wrong.

You might be interested in

You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upwar

Andru [333]

In order to get a sample of air that is 23 km above the ground, the rocket must rise by that height.

Draw a diagram (shown below) t represent the problem.

The distance h₁ is traveled from A to B with an upward acceleration of 17 m/s² over 30 s. The distance traveled is
h₁ = (1/2)(17 m/s²)(30 s)² = 7650 m = 7.65 km

At point B, the velocity attained is
V = (17 m/s²)30s) = 510 m/s

The distance h₂ is traveled from B to C with gravitational deceleration of -9.8 m/s². The distance traveled is given by
(510 m/s)² - 2(9.8 m/s²)h₂ = 0
h₂ = 13270.4 m = 13.27 km

The total height attained by the rocket is
h₁ + h₂ = 7.65 + 13.27 = 20.92 km

This height falls short of the desired height of 23 km.

Answer:
The rocket does not travel high enough to sample the air at a height of 23 km.

5 0

4 years ago

The downward acceleration of a falling body on Earth is 9.81m/s2. On the moon the same quantity is 1.62m/s2. An astronaut in a s

Bas_tet [7]

The astronaut's mass doesn't change. It's the same wherever he goes,
because it doesn't depend on what else is around him.

His weight depends on what else is near him, so it changes, depending
on where he is.

   Weight = (mass) x (gravity)

On Earth, Weight = (145 kg) x (9.81 m/s²) = 1,422.5 newtons.
   (about 320 pounds)

On the moon, Weight = (145 kg) x (1.62 m/s²) = 234.9 newtons.
   (about 53 pounds)

5 0

3 years ago

What is Newtens first law of motion

OlgaM077 [116]

Newtons first law states that an object will remain still or in straight line. Until acted upon some force!

4 0

3 years ago

Read 2 more answers

The hour, minute, and second hands on a clock are 0.25 m , 0.31 m , and 0.34 m long, respectively.

sp2606 [1]

In 1 hour, the hour hand sweeps across 1/12 of the clock's face. In 40 min, the hour hand travels (40 min)/(60 min) = 2/3 of the path it covers in an hour, so a total of 1/12 × 2/3 = 1/18 of the clock's face. This hand traces out a circle with radius 0.25 m, so in 40 min its tip traces out 1/18 of this circle's radius, or

1/18 × 2π (0.25 m) ≈ 0.087 m

The minute hand traverses (40 min)/(60 min) = 2/3 of the clock's face, so it traces out 2/3 of the circumference of a circle with radius 0.31 m:

2/3 × 2π (0.31 m) ≈ 1.3 m

The second hand completes 1 revolution each minute, so in 40 min it would fully trace the circumference of a circle with radius 0.34 m a total of 40 times, so it covers a distance of

40 × 2π (0.34 m) ≈ 85 m

6 0

3 years ago

Kevin is a major stockholder in Professional Transmission Services (PTS), a nationwide network of transmission repair shops foun

const2013 [10]

Answer:

Kevin wants to make the firm private

Explanation:

Based on the information provided within the question in regards to the situation it seems that Kevin wants to make the firm private. Private Firms are companies that are owned by non-governmental entities or instead owned by a single individual or a very small amount of shareholders. Which is what Kevin seems to be wanting to do since he wants to buy back all the shares of the company so that only his family owns the company.

If you have any more questions feel free to ask away at Brainly.

6 0

3 years ago