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
Semenov [28]
3 years ago
10

An Austin volleyball player bumps a 5 kg ball into the air. It reaches a height of 2.8 meters. How fast was the ball going as it

got bumped into the air?
O 137.2 m/s
O 7.4 m/s
O 19.6 m/s
O 14 m/s
Physics
1 answer:
KATRIN_1 [288]3 years ago
6 0

Answer:

v = 7.4 m/s

Explanation:

Given that,

Mass if a volleyball, m = 5 kg

The ball reaches a height of 2.8 m

We need to find how fast the ball is going as it bumped into the air. Ket the velocity is v. Using the conservation of energy to find it as follows :

mgh=\dfrac{1}{2}mv^2\\\\v=\sqrt{2gh} \\\\v=\sqrt{2\times 9.8\times 2.8} \\\\=7.4\ m/s

So, the required speed is 7.4 m/s. Hence, the correct option is (b).

You might be interested in
There are two ways that an object can get in motion. What are they?You may use the following sentence frame:An object can get in
Westkost [7]
You can get an object in motion by a push or pull!
4 0
3 years ago
Read 2 more answers
Which of the following is true about natural selection?
Sergio039 [100]
A is the correct answer
4 0
3 years ago
A dump truck contains a load of soil. Which action will INCREASE the dump
ANTONII [103]

Answer:

D. Add more soil

Explanation:

8 0
3 years ago
Read 2 more answers
Care este densitatea materialului din care se confectioneaza un cub de 5cm daca masa lui este de 0,975kg/m3?
ValentinkaMS [17]

Answer:

i speak english not spanigh sorry :(

Explanation:

5 0
3 years ago
Read 2 more answers
Elements of Music<br>Timbre<br>Dynamics<br>Rhythm<br>Form<br>Texture<br>Harmony<br>Style​
rodikova [14]

Explanation:

Rhythm, Harmony, Timbre, Dynamics, Texture, and Form

7 0
2 years ago
Other questions:
  • You are riding on a school bus and suddenly get thrown forward. What did the bus just do?
    15·2 answers
  • (06.03 LC)
    12·1 answer
  • The broom hocket fame helps you work on what skill?
    10·1 answer
  • What is the unit for current? <br> a. a <br> b. c <br> c. i <br> d. t
    5·1 answer
  • How does speed affect momentum
    14·2 answers
  • The earth has a net electric charge that causes a field at points near its surface equal to 150 N/C and directed in toward the c
    13·1 answer
  • Which items are matter?<br> Battery electricity mobile phone sound light heat
    6·2 answers
  • The water in a deep underground well is used as the cold resevoir of a Carnot heat pump that maintains the temperature of a hous
    11·1 answer
  • If a galaxy has an apparent radial velocity of 2000 km/s and the Hubble constant is 70 km/s/Mpc, how far away is the galaxy
    13·1 answer
  • Which statement describes a surface wave?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!