1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
grandymaker [24]
4 years ago
5

Superman can leap over tall buildings in a single bound. What does he do to the ground beneath him? Assume his mass is 100.0 ± 0

.1 kg and his hips drop by 0.300 ± 0.020 m before he jumps. If he can jump over the top of PNC Plaza (tallest building in Raleigh), which is 164 ± 1 m, calculate the following with uncertainties:
a. Takeoff velocity
b. Acceleration just before takeoff
c. Force on ground at take off
Physics
1 answer:
statuscvo [17]4 years ago
7 0

Answer:

Explanation:

Height reached = 164m

If velocity of launch be u

u² = 2gh

= 2 x 9.8 x 164

= 3214.4

u = 56.7 m /s

difference in u = 1/2  (diff in h / h) x u

1/2 x 1/164 x 56.7

.17 or .2

u = 56.7 ± .2 m /s

or 57± 1

b )  During the displacement of .300 m , there is acceleration to achieve velocity of 56.7 m /s

v² = 2as

a = v² / 2s

= 56.7² / (2 x .3)

= 5358.15 m /s²

diff in a

= 1/2 x (.02 / .3) x 5358.15

178.6

a = 5358.1 ±178.6

c ) force on the ground

mass ( g + a )

= 100 x ( 9.8 +5358.1)

= 536790 N

error  in force = (.1/100 + 178.6 / 5358 ) x 536790

=( .01 +.03)x 536790

= 21471

(536790 ± 21471) N

You might be interested in
What is the formula for finding the perimeter of a space?
dlinn [17]

Answer:

What shape is it? the formula is different depending on the shaping

Explanation:

Square P=4s

Rectangle P=2L+2W

Triangle a+b+c

Circle     P=C=2πr=πd

and so on

6 0
3 years ago
Please someone answer this
blondinia [14]

Answer:

you just have to draw a line from the eye reflecting from the mirror to the object shown.

Explanation:

Dont come at me if its wrong. I think thats what their asking of you.

8 0
3 years ago
Pakistan and bangladesh are two countries on the subcontinent
gregori [183]

Answer:

Indian subcontinent  

Explanation:

The Indian subcontinent is a southern region and peninsula of Asia which include seven countries. The seven countries in Indian subcontinent are Pakistan, Bangladesh, India, Bhutan, Maldives, Sri Lanka and Nepal. According to Wikipedia, about 55 million years ago, the Indian subcontinent has land mass that rifted from Gondwana and merged with the Eurasian plate.

5 0
3 years ago
Advantage of using infared camera
vladimir2022 [97]

it can be used to detect

3 0
3 years ago
Read 2 more answers
A bicycle accelerates from rest to 6 m/s in 2 s. What is the bicycle's acceleration?
Angelina_Jolie [31]

Answer:

Explanation:I don't say you have to mark my ans as brainliest but if you think it has really helped you plz don't forget to thank me...

4 0
3 years ago
Read 2 more answers
Other questions:
  • As the army approached the bridge into the city, the commander told them to break step. He did not want the soldiers to march in
    10·2 answers
  • A rod of length L has a charge Q uniformly distributed along its length. The rod lies along the y axis with one end at the origi
    10·1 answer
  • Can someone please help me ?
    14·1 answer
  • In a solar system far far away, the sun's intensity is 100 W/m2 for a planet located a distance R away. What is the sun's intens
    12·1 answer
  • A bridge to be fabricated of steel girders is designed to be 500 m long and 12 m wide at ambient temperature (assumed 20°C). Exp
    6·1 answer
  • Which circuit is a series circuit ?? plz help
    7·2 answers
  • 47. Calculate the final steady temperature obtained when
    7·1 answer
  • An incident ray of light strikes a diamond at an angle of
    7·2 answers
  • a snail is at rest. it accelerates at a rate of 0.0075m/s^2. calculate the time it takes to reach a speed of 0.0135m/s​
    7·1 answer
  • Help me please! i will give brainliest i need it done i know its easy but i have a lot of work to do
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!