A Test Rocket Is Fired Straight Up from Rest with a Net

question 45

Multiple Choice

A test rocket is fired straight up from rest with a net acceleration of 20 m/s².After 4 seconds the motor turns off,but the rocket continues to coast upward.What maximum elevation does the rocket reach?

• A)487 m
• B)327 m
• C)320 m
• D)408 m
• E)160 m

---

Definitions:

Monozygotic Twins

Identical twins that result from one zygote splitting and developing into two separate embryos.

Concordance Rate

A statistical measure used in genetics, indicating the probability that a pair of individuals will both have a certain characteristic, given that one of the pair has the characteristic.

Genetic

Relating to genes or heredity, how certain traits or conditions are passed from parents to their offspring.