<u>Answer:</u> The momentum of the car is 16000 kg.m/s
<u>Explanation:</u>
Momentum is defined as the force that keeps the object moving. It is also defined as the product of mass and velocity of an object.
Mathematically,
where,
p = momentum of the car = ?
m = mass of the car = 800 kg
v = velocity of the car = 20 m/s
Putting values in above equation, we get:
Hence, the momentum of the car is 16000 kg.m/s
The solution would be like this for this specific problem:
Given: 175 g/L
1 gram/liter = 0.06242796 pound/cubic
foot
175 g/L * 0.06242796 pound/cubic foot
= 10.924893 lb/ft3
So, a foam material has a density of 10.924893 lb/ft3 in
units of lb/ft3.
The answer is B. The nuclei of elements.
Answer:
D
Explanation:
Now we know that Force is the rate of change of momentum meaning
F= mv/t
But
mv/t = Ke
v/t = ke/m
a= ke/m
Where a is acceleration
K is constant of proportionality of tension on a spring
e is the extension substended by a string.
From the formula of acceleration we can see that as mass decreases acceleration increases so we can see that m = 1
We would have a maximum value of acceleration.
