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-4 mph/sec (Study Island Answer)

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Q: If an object goes from 50 mph to 30 mph in 5 seconds what is its acceleration?
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If an object goes from 60 mph to 10 mph in 5 seconds what is its acceleration?

-10 mph/sec


If a roller coaster goes from zero to 80 miles per hour in 1.8 seconds what is its acceleration in miles per hour per second to the nearest tenth?

It goes from 0 mph to 80 mph in 1.8 seconds Acceleration = change in speed/time taken = (80 - 0)/1.8 mph per second = 44.4 mph per sec


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In 2 seconds at 30 mph what is distance in feet?

At 30 mph, an object travels about 102.66 feet in two seconds.


What is the average acceleration of a car that goes from rest to 60 mph in 8 seconds?

The car accelerates an average of 7.5 mph per second. It increases its speed 7.5 mph for every second that it accelerates. The car accelerated from zero to 60 mph in 8 seconds. If we wish to find out how fast it accelerated, we need to divide its acceleration (final speed minus initial speed) by the amount of time that it took to get going that fast. In this case, 60 divided by 8 equals the answer 7.5 mph/sec.


An object with constant velocity has positive acceleration?

Answer This occurs when an object istraveling in one direction but has an acceleration in the opposite direction, which means it is decreasing in speed. For a given period of time, the speed has decreased. Acceleration is the change of velocity per second. T1 = 5 seconds V1 = 100mph T2 = 10 seconds V2= 50 mph Acceleration = (V2 - V1 ) / (T2 - T1) = (50-100)/(10-5) = -10 ft/sec/sec Positive(+) acceleration means an object will be going faster over an interval of time.


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Mikes car can accelerate from 0 mph to 40 mph in 5 seconds. what is the acceleration of his car in miles per hour per second?

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What will the acceleration and top speed of the new Alfaromeo Mito GTA be?

Acceleration: 5 seconds from 0 to 100 km/h (0 to 60 mph) Top speed: 250 km/h (155 mph)