A 500 g model train car traveling at 0.8 m/s collides with a 300 g stationary car. The cars hook up and move off down the track together. How fast are they going? ( also how do I do it )
Answers
Answer:
Step-by-step explanation:
Let v be the speed after the collision of both the cars.
Now, momentum is given by: mass × velocity, then by equating the total momentum before and after the collision of the two cars, we get
⇒
⇒
⇒
Thus, they are moving at the velocity of
Answer:
0.5 m/s
Step-by-step explanation:
A 500 g model train car traveling at 0.8 m/s collides with a 300 g stationary car.
Initial velocity of train,
Initial velocity of car,
Mass of train,
Mass of car,
The cars hook up and move off down the track together.
Let the final velocity of car and train,
Using conservation of momentum,
Momentum before collision = Momentum after collision
Hence, After collision they will going with 0.5 m/s
Related Questions
a missing fraction on a number line is located exactly halfway between 3/6 and 5/6 what is the missing fraction
The figure is to be rotated 1/2 (180 degrees) turn about point P. What will be the distance from point A to point A' in the rotated figure?A.4 unitsB.6 unitsC.8 unitsD.12 units
ANSWER FAST PLZZZZZZZZZ
What is the decimal form of 100/3 100/5 and 100/6
Answers
Answer:
16= 8d-16-4
16= 8d-20
36=8d
d=4.5
Step-by-step explanation:
First you need to distribute the 2 to the numbers in the parenthesis.
Then you need to combine like terms
then add 20 to 36
then divide 36 by 8 to find d
Answer:
16= 8d-16-4
16= 8d-20
36=8d
d=4.5
Step-by-step explanation:
i just realised someone said this already...
Answers
solve inside the parentheses first.
4 x 12 = 48
second add the products together
48 + 3 = 51
51 is the answer
Answers
Answers
Answer: x = 15
Step-by-step explanation: since ABCD is a parrallelogram, 9x-28 = 7x+2
if we solve that, we get x=15
Answers
perimiter
P=2(L+W)
if we have
L=6
W=4
P=2(6+4)
P=2(10)
P=20
original is 20
if both are doubled
6*2=12
4*2=8
P=2(12+8)
P=2(20)
P=40
from original to new is
from 20 to 40
what is percent change?
find chnage
new-original=change
40-20=20
percent change=change/original
20/20=1=100%
answer is 100%
| 6 feet | | 6 feet | 6 feet |
| | | | | 4 feet
|_________ | |__________|__________|
| | |
| | | 4 feet
|__________|__________|
the figure shows that the second garden has a circumference twice . We must , however, prove.
Denote the sides of the first garden - a rectangle letters a and b
circuit garden
C₁ = 2a + 2b = 2*(a+b)
The sides of the second garden also denoted with the letters a and b . We calculate the circuit
C₂ = 2*2a + 2*2b = 4a + 4b = 4*(a+b)
2 = 2*100%=200%
200% -100% = 100%
Answer : The ratio of the second garden to the first ( ratio ) is 2 . Circuit increased by 100 %