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
steposvetlana [31]
3 years ago
14

A flowerpot falls from the ledge of an apartment building. A person in an apartment below, coincidentally holding a stopwatch, n

otices that it takes 1 s for the pot to fall past his window, which is 4 m high. How far above the top of the window is the ledge from which the pot fell? The acceleration of gravity is 9.81 m/s 2 . Answer in units of m.
Physics
1 answer:
valkas [14]3 years ago
6 0

Answer

given,

height of window = 4 m

time taken to travel = 1 s

acceleration due to gravity = 9.8 m/s²

s = ut + \dfrac{1}{2}at^2

u = \dfrac{s - \dfrac{1}{2}at^2}{t}

u = \dfrac{4 - \dfrac{1}{2}\times 9.8\times 1^2}{1}

u = -0.905 m/s

initial velocity of ledge v = 0

now,

v² = u² + 2 a s

(-0.905)² = 0 + 2 × 9.8 ×s

s = 0.042 m

You might be interested in
A current in a wire increases from 2 a to 6 a. how will the magnetic field 0.01 m from the wire change? it increases to four tim
kotykmax [81]

Answer:

 It increases to three times it's original value.

Explanation:

B

4 0
2 years ago
Read 2 more answers
In air, a sound wave with a frequency of 196 Hz has a wavelength of about 1.76 meters. What is the wavelength of a wave of the f
DENIUS [597]
I think the correct answer is B
3 0
3 years ago
1+5-(-5 - 1) whats the answer​
vladimir2022 [97]

Answer:

12

Explanation:

6 0
2 years ago
Read 2 more answers
I need help with two more Physics problems​
sesenic [268]

Answer:

c. They hit at the same time

b. BGS

Explanation:

A marble dropped (initial vertical velocity is 0) will land at the same time as a marble launched horizontally (initial vertical velocity is 0) from the same height.

Boat S has a net speed of 5 m/s (10 − 5).

Boat B has a net speed of 15 m/s (10 + 5).

Boat G has a net speed of ≈11.2 m/s (√(10² + 5²)).

8 0
2 years ago
Read 2 more answers
What is the approximate efficiency of the engine?
Elodia [21]

Answer:91% I think

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • The rms current output in a circuit is 4.67 A. What is the maximum current?
    5·2 answers
  • Need help with number <br> 50 <br> PLEASE HELP! Show all work please!
    7·1 answer
  • Really need help with this Physics question!
    5·1 answer
  • A neon sign _________ light.<br> A. emits<br> B. filters<br> C. reflects<br> D. transmits
    7·1 answer
  • 2. Starting from the origin, a person walks 4 km east during first day, and 7 km west the
    5·1 answer
  • Through which media did sound waves travel the fastest and the slowest?
    8·1 answer
  • a que velocidad en km/h corrio usain bolt en el capeonato mundial de berlin en 2009 para batir el record mundial de los 100 m pl
    11·1 answer
  • A baseball player hits a 140 g baseball with a force of 2800 N. What is the
    15·1 answer
  • The chart below lists the densities of various gemstones. If a gemstone has a mass of 6.24 g and a volume of 1.98 cm cubed, whic
    10·1 answer
  • 4. You bought a block of cheddar from the grocery store. If you cut a small piece and a large piece from the same block of chees
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!