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
irina [24]
3 years ago
12

If a ball that is 10 meters above the ground is thrown horizontally at 5.51 meters per second. a. how long will it take for the

ball to hit the ground? b. how far will the ball travel in the horizontal direction before it hits the ground?​
Physics
1 answer:
GalinKa [24]3 years ago
4 0

Answer:

a. t = 1.43 s

b. d = 7.88 m

Explanation:

a. The time of flight can be found using the following equation:

y_{f} = y_{0} + v_{0_{y}}t - \frac{1}{2}gt^{2}

Where:

y_{f}: is the final height = -10 m

y_{0}: is the initial height = 0

v_{0_{y}}: is the initial speed in the vertical direction = 0

g: is the acceleration due to gravity = 9.81 m/s²

By solving the above equation for "t" we have:

t = \sqrt{\frac{2y_{f}}{g}} = \sqrt{\frac{2*10 m}{9.81 m/s^{2}}} = 1.43 s

Hence, the ball will hit the ground in 1.43 s.

b. The distance in the horizontal direction can be found as follows:

x_{f} = x_{0} + v_{0}t + \frac{1}{2}at^{2}

Where:

x₀: is the initial position in the horizontal direction = 0

a: is the acceleration in the horizontal direction = 0 (it is moving at constant speed)

x_{f} = 5.51 m/s*1.43 s = 7.88 m

Therefore, the ball will travel 7.88 m before it hits the ground.

I hope it helps you!

You might be interested in
What was significant about the discovery of gallium
Kryger [21]
It confirmed medeleeve's hypothesis (prediction) and showed the use of his table
8 0
3 years ago
Read 2 more answers
Compared to water, most metals have low specific heats.<br> true<br> or<br> false
Alchen [17]
Yes that's a true statement. That's why grandmother put a hot water bottle to warm up her bed, and not a hot bar of steel or lead.
8 0
3 years ago
Read 2 more answers
Please answer! thank you!
lesantik [10]

Answer:

Maybe A.... I'm not sure

Explanation:

8 0
3 years ago
Read 2 more answers
СРОЧНО ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!!!!!!<br>​
Deffense [45]

Боже, как это сложно! Ну ладно.

Между прочим это ты сам должен делать, а то не куда не поступишь!

3 0
3 years ago
How do electromagnetic and mechanical waves compare?
larisa [96]
Transmit energy
Doesn’t transmit matter
4 0
3 years ago
Read 2 more answers
Other questions:
  • Can anyone help me for this question please?? I really need help someone!!!
    15·1 answer
  • The best rebounders in basketball have a vertical leap (that is, the vertical movement of a fixed point on their body) of about
    9·1 answer
  • Using Excel, or some other graphing software, plot the values of y as a function of x. (You will not submit this spreadsheet. Ho
    7·1 answer
  • what are the three types of solenoids, which one is the most common, and which one is used in pinball machines?​
    7·1 answer
  • An object falling under the influence of gravity and no other force is said to be
    13·1 answer
  • Give two examples of gravity in the solar system
    11·1 answer
  • What is the boiling point of an aqueous solution that has a vapor pressure of 21.0 torr at 25 ∘C? (P∘H2O=23.78 torr; Kb= 0.512 ∘
    6·1 answer
  • Please help!!! Will give u Brainliest
    13·1 answer
  • Scenario
    5·1 answer
  • Hi how are you?<br><br>Answer only Philippines<br>​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!