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
mojhsa [17]
3 years ago
11

A ball is thrown at 23.2 m/s inside a boxcar moving along the tracks at 34.9 m/s. What is the speed of the ball relative to the

ground if the ball is thrown forward
Physics
1 answer:
Shtirlitz [24]3 years ago
7 0

Answer:

The speed of the ball relative to the ground if the ball is thrown forward is 58.1 m/s

Explanation:

Given;

speed of the ball thrown inside boxcar, V_B = 23.2 m/s

speed of the boxcar moving along the tracks, V_T = 34.9 m/s

Determine the speed of the ball relative to the ground if the ball is thrown forward.

If the ball is thrown forward, the speed of the ball relative to the ground will be sum of the ball's speed plus speed of the boxcar.

V_{relative \ speed} = V_B + V_T\\\\V_{relative \ speed} = 23.2 + 34.9\\\\V_{relative \ speed} = 58.1 \ m/s

Therefore,  the speed of the ball relative to the ground if the ball is thrown forward is 58.1 m/s.

You might be interested in
A football field is about 100 m long. If it takes a person 20 seconds to run its length, how fast (what speed) were they running
leonid [27]

Answer:

Speed, v = 5 m/s

Explanation:

We have,

The length of the football field, l = 100 m  

A person takes 20 seconds to run its length.

It is required to find the speed of the person with which he should run. The distance covered divided by time taken is called its velocity.

v=\dfrac{d}{t}\\\\v=\dfrac{100\ m}{20\ s}\\\\v=5\ m/s

So, the speed of the person is 5 m/s.

3 0
4 years ago
A backpack has a mass of 8 kg. It is lifted and given 54.9 J of gravitational potential energy. How high is it lifted? Accelerat
sweet [91]
Potencial Energy=hma
Where
Potencial Energy =E= 54.9J
h=?
m=8kg
a=9.8m/s^2
You need to know that 1 J=1(kgm^2)/s^2

Isolate h=E/(ma)
h=(54.9)/(8*9.8)
8 0
3 years ago
Read 2 more answers
This is an imaginary line on Earth's surface equidistant from the North Pole and South Pole that divides the Earth into a northe
xxTIMURxx [149]
Longitude lines because latitude lines are the ones that run east to west
3 0
4 years ago
Read 2 more answers
Convert 15° C to fahrenheit and kelvin
vivado [14]

Answer:

59 degrees fahrenheit and 288.15 kelvin

Explanation:

4 0
3 years ago
Read 2 more answers
Please help me with my homework
larisa86 [58]

Answer:

no h03

Explanation:

8 0
3 years ago
Other questions:
  • An electrical short cuts off all power to a submersible diving vehicle when it is a distance of 28 m below the surface of the oc
    8·1 answer
  • What is one advantage of using primary source when doing research on an experiment
    13·1 answer
  • Which type of galaxy often contains the largest relative amount of gas and dust?
    7·1 answer
  • I have 22 electrons; how many protons and neutrons do I have?
    5·1 answer
  • Draw two unique free body diagrams that each show a net force of 30 N to the left.​
    5·1 answer
  • Determine the work done by the constant force. The locomotive of a freight train pulls its cars with a constant force of 15 tons
    13·1 answer
  • Malachi uses some glue to fix a broken plate. He puts the glue under a desk lamp but the glue doesn't dry. Then he puts the glue
    14·1 answer
  • How do microwaves help heat frozen food?
    7·2 answers
  • A force of 77 N is used to move a desk 1.5 m. How much work was done?
    7·1 answer
  • the fireman wishes to direct the flow of water from his hose to the fire at b. determine two possible angles u1 and u2 at which
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!