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
Ymorist [56]
3 years ago
6

You're on a train that's moving forward at 50 mph. You throw a ball in the direction that the train is moving. Relative to you a

nd the train, the ball leaves your hand travelling at 20 mph.From the point of view of someone standing alongside the tracks, how fast is the ball moving?
Mathematics
1 answer:
dsp733 years ago
8 0

Answer:

Velocity =  70mph

Step-by-step explanation:

Given

Train = 50mph

Ball = 20mph

Required

How fast is the ball seem to be moving?

This question illustrates relative velocity;

Since the ball and the train moves in the same direction, the required velocity relative to the person standing behind is:

Velocity =  Train + Ball

i.e. we add both velocities

Velocity =  50mph + 20mph

Velocity =  70mph

You might be interested in
3.<br> Find two numbers whose product is -6 and whose sum is 1.
Anestetic [448]

Answer:

-2, 3

Step-by-step explanation:

yeah that's it I don't have any explanation or formula

5 0
2 years ago
Read 2 more answers
On a graph, the solution to a system of linear equations is represented by __________.
Eduardwww [97]

Answer:

Step-by-step explanation:

The solution for a system of equations when expressed graphically is coordinate of the point where the two graphs intersect.

4 0
3 years ago
Read 2 more answers
Solve the following system of equations by the substitution method.
Dahasolnce [82]

Answer:

Step-by-step explanation:

5x=y+6   --------- equ 1

2x-3y=4  -------- equ 2

5x - 6 = y

y = 5x - 6

substitute in equ 2

2x-3(5x - 6) =4

2x - 3*5x + 3*6 = 4

2x - 15x + 18 = 4

- 13x = 4 - 18

-13x = -14

x = -14/-13

x = 14/13

substitute  in equ 1

5*14/13 = y+6  

70/13 - 6 = y

y =  ( 70 - 78)/13

y = -8/13

6 0
2 years ago
Please help!!!!!
Burka [1]

Answer:The answer is B

Step-by-step explanation: because mitchells line is traveling steeper than matthews

6 0
3 years ago
Evaluate 7m+2n-8p/n m=4, n=2, and p=1.5
Firlakuza [10]

Steps to solve:

7m + 2n - 8p/n

~Substitute

7(4) + 2(2) - 8(1.5)/2

~Simplify

28 + 4 - 12/2

~Simplify

28 + 4 - 6

~Add

32

~Subtract

26

Best of Luck!

4 0
3 years ago
Other questions:
  • Help me find the answer
    8·1 answer
  • What is the length of a rectangle with a width of 10 cm and area of 120 cm???
    14·1 answer
  • Approximate value of x and why
    5·2 answers
  • How do you simplify (9x^8y^3)^1/2
    5·1 answer
  • Please help answer! I need to answer this in 2 mins
    9·2 answers
  • HELP FASTTT 50 POINTS.... NO FOOLING
    8·2 answers
  • NEED HELP ASAP!!!!!!!!!
    12·1 answer
  • The function C(x)=−15x+2304 represents the cost to produce x items. What is the least number of items that can be produced so th
    6·1 answer
  • The circumference of a circle is 11 inches. What is the area, in square inches, of the circle? Express your answer in terms of p
    15·2 answers
  • Help me pls thank you<br>​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!