A 50,000-kg train car moving at 2 m/s collides and connects to another identical car initially at rest. –What is the momentum of the first train car before the collision?

–What is the final velocity of the two connected train cars?

-Is the momentum being conserved through out the collision? Explain why.

-Is the kinetic energy being conserved through out the collision? Explain why.

-Is this collision an elastic or inelastic collision? Explain why.

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue

that the claims meet official rules.

don't misinterpret the claims

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft