Answer:
A. 3s
Step-by-step explanation:
The height of the object after t seconds is given by:

When will the object hit the ground?
It hits the ground after t seconds, and t is found when
. So







3 seconds, so the correct answer is given by option a.
Answer:
it sin 60
Step-by-step explanation:
Answer:
Step-by-step explanation:
Step-by-step explanation:
13.5 is the difference of the length of the roads
Answer:
1
1
2
4
Step-by-step explanation: