Answer:
12000 mph
Explanation:
Given that,
Distance read by the odometer = 120,000 miles
Duration of car, t = 10 years
We need to find the average speed of the car. Speed of an object is equal to the total distance covered divided by total time taken. So,
So, the average speed of the car is 12000 mph.
The stone's altitude at time 
is given by
where 
is the acceleration due to gravity. The stone reaches the ground when 
:
Answer:
4.54
Explanation:
X+10X=50
11X=50
X=4.54#
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