October 2018
Intermediate to advanced
214 pages
5h 31m
English
An interplanetary spaceship lands on a planet with a negligible atmosphere and fires three projectiles carrying exploratory bots at the planet, but at different initial velocities. After the bots land on the surface, their distances are measured and the data is recorded, as follows:
|
Velocity in m/s |
Distance in m |
|
400 |
38,098 |
|
600 |
85,692 |
|
800 |
152,220 |
|
? |
300,000 |
At what speed should the projectile carrying the fourth bot be fired in order for it to land 300 km from the spacecraft?
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