When the car is moving, it has Kinetic Energy. As soon as the car entercount with the spring, its Kinetic Energy will transfer to Elastic Potential Energy.
<span>KE = EPE </span>
<span>1/2mv^2 = 1/2kx^2 </span>
<span>change the speed into m/s </span>
<span>50 km/hr = 13.9 m/s </span>
<span>1/2(1200)(13.9)^2 = 1/2k(2.2)^2 </span>
<span>now you do the math to solve for k.
k= 115926/2.42
K= 47903.30</span>
Answer:
A = 48, and B = 52
Step-by-step explanation:
Simplify 8 = 2 hours to 4 = 1 hour, then multiply 4 times 12 to get the answer to a. The answer to b would be multiplying 4 times 13.
Answer: 7 bowls
Step-by-step explanation:
5_ 5/6 divided by 3/4 equals 7.77777
Answer:
(x+1)
Step-by-step explanation:
(x^2-x-2)/(x-2)=(x+1)
Because (x-2)(x+1)=x^2-2x+x-2=x^2-x-2.
