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
asambeis [7]
3 years ago
5

If a ball is thrown up at an initial speed of 40. m/s, how many seconds does it take to reach the top of its path?

Physics
1 answer:
natka813 [3]3 years ago
5 0

Answer:

Time, t = 4.08 secs

Explanation:

<u>Given the following data;</u>

Initial velocity, U = 40m/s

To find the time, we would use the first equation of motion;

V = U + at

Where;

  • V is the final velocity.
  • U is the initial velocity.
  • a is the acceleration.
  • t is the time measured in seconds.

<em>Making time, t the subject of formula, we have;</em>

t = \frac{V - U}{a}

We know that acceleration due to gravity, g is 9.8m/s².

a = g = - 9.8m/s² because the ball is thrown in the opposite direction.  

Also, the final velocity is equal to zero (0) because the ball reached its maximum height.

<em>Substituting into the equation, we have;</em>

t = \frac{0 - 40}{-9.8}

t = \frac{-40}{-9.8}

Time, t = 4.08 secs

<em>Therefore, it will take the ball 4.08 seconds to reach the top. </em>

You might be interested in
Why do you think the standards changed over time?
Eddi Din [679]

Answer:

https://www.quora.com/Why-do-you-think-standards-of-beauty-have-changed-over-the-years

Explanation:

your answer is in this link

7 0
3 years ago
Which vector is the sum of vectors a and ?<br> b<br> а<br> O<br> A.<br> B.<br> C.
seropon [69]

Answer:

i would say D.

Explanation:

5 0
3 years ago
Newton has Three Laws of Motion. Seat belts are used to help keep the passengers remaining in their seats during an accident. If
kherson [118]
Newton’s first law of inertia
Less force, same work
5 0
3 years ago
A car travels east at a constant velocity. The net force on the car is:
Scrat [10]
F=ma
As velocity is constant, a=0
So, F=0

Hope this helps!
6 0
3 years ago
As the space shuttle orbits the Earth, the shuttle and the astronauts
morpeh [17]
The answer is B. Weightlessness
7 0
2 years ago
Other questions:
  • Resonance occurs when an object vibrating at or near the resonant frequency of a second object to vibrate. What form of waves ar
    13·1 answer
  • PLEASE HELP!!!!
    10·1 answer
  • The thermal conductivity of a cement is 0.168 British thermal units per foot hour degree Fahrenheit ​[BTU divided by (ft h Super
    15·1 answer
  • What is tiny holes on the surface of a plant?
    15·1 answer
  • A nonprofit organization posted an article in the local newspaper about a recent marathon. The marathon raised money for vaccina
    12·2 answers
  • The human ear is most sensitive to the sounds in what range?
    14·1 answer
  • An astronaut on Pluto attaches a small brass ball to a 1.00-m length of string and makes a simple pendulum. She times 10 complet
    6·1 answer
  • Come play among us with me the code is MTZTFF
    8·2 answers
  • Please help with this :(
    10·1 answer
  • A body accelerates by 25m/s 2 when it applied by 40n forces.what would be acceleration if it is applied by 80n forces
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!