40 mph/5 sec = 8 mph per second.
That happens to be within a few percent of the gravitational acceleration on
the surface of Mars. In other words, if you dropped Mike onto Mars from a
small distance above the surface, his descent rate would go from zero to
40 mph in about 5 seconds. Whereas, in the same 5 seconds spent falling
to Earth, his descent rate would go from zero to almost 110 mph.
-6 mph/s
8
It is: 186,000 miles per second
"10 miles per second" is not an acceleration, it is a speed. An acceleration has two time units, or a time unit squared, for example, "9.8 meters / second2".
An object traveling 0.6 miles in 1.2 seconds is traveling at a speed of 2 miles per second, which is 7200 miles per hour.
(4.4 miles / hour-second) x (1609.344 meters / mile) x (1 hour / 3,600 seconds) =1.967 meter / sec2 (rounded)
To convert miles per hour to seconds, you need to know the distance covered in a specific time period. Miles per hour is a unit of speed, while seconds are a unit of time. Without additional information, it is not possible to directly convert 126 miles per hour into seconds.
8
Acceleration = change in velocity/change in time Acceleration = 96 miles per second - 32 miles per second/8 seconds = 8 miles per second per second or, better expressed 8 mi/s^2 ---------------
-66.667 miles per second squared
A gain of 2 miles per second squared
20 miles per second / 10 seconds = 2 miles per second ^ 2
negative one mile per second per second
3 / 12 = 0.25 miles/second2.
-6.667 miles per second squared
5 m/s2
20 miles/hour/second The acceleration is simple division 60/3 = 20.
Acceleration = (change in speed) divided by (time for the change)Acceleration = (25 - 0)/(3) = 81/3 miles per second2Don't try this at home. That acceleration is about 1,368 G's. You can not survive it!
So acceleration is an increase of speed every second. The increase of speed was 9miles/sec and this was over 3 seconds. Therefore there was an acceleration of 3 miles/second every second i.e. 3m/s2