The conversation between human and AI assistant.
A stone is projected vertically upwards with speed 17.5m/s. The length of time for which it is at least 6.6m above its starting position is D/7 seconds. What is the value of D?
That sounds complicated. Can you explain it in simpler terms?
Of course! The formula allows us to calculate how high the stone will go based on its initial velocity and how long it's in the air. Using this information, we can determine how long the stone will be at a height of at least 6.6m.