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

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-4 mph/sec (Study Island Answer)

55/6 = 9.16666...mph/s

13.5 mph

If the speed is constant at 50 mph, then the acceleration is 0.

The van that is moving from 20 mph to 35 mph

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-4 mph/sec (Study Island Answer)

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

-6 mph/s

20 mph/s North

55/6 = 9.16666...mph/s

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

the final velocity = initial velocity + acceleration x time; since acceleration is negative final velocity = 45 - 10x3 = 45 -30 = 15 mph

Acceleration = Change in speed/Time Time = Change in Speed/Acceleration = 65mph/20mph per s = 65/20 seconds = 3.25 seconds

8

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.

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.

really the Jaguar is built for acceleration and goes about 30 mph.

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