The distance a spring will stretch varies directly with how much weight is attached to the spring. If a spring stretches 11 inch
2 answers:
Answer:
The spring will stretch to 9.5 inches.
Step-by-step explanation:
The distance a spring will stretch varies directly with how much weight is attached to the spring.
A spring stretches 11 inches with 75 pounds.
Let it stretches to 'x' inches with 65 pounds weight.
We can solve this as :
x=9.5
Therefore, the spring will stretch to 9.5 inches.
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and 
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where
is <span>drag factor
</span>
is the radius
We know form our problem that the drag factor is 0.2, so
. We also know from our previous calculation that the radius is 
, so 
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We can conclude that Mrs. Beluga's minimum speed before she applied the brakes was 13.34 miles per hour.
where
We know from our problem that the tires leave a yaw mark with a 52 foot chord and a middle ornate of 6 feet, so
Next, to find the minimum speed, we are going to use the formula:
where
</span>
We know form our problem that the drag factor is 0.2, so
We can conclude that Mrs. Beluga's minimum speed before she applied the brakes was 13.34 miles per hour.