A roller coaster track is 3,000 meters long. It takes 100 seconds to travel once around the roller coaster. What is the average
2 answers:
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To solve this problem you must apply the proccedure shown below:
1. You have that the radius and the height of the cylinder are:
2. So, you must calculate the area:
3. Substitute the values into the formula:
4. When the radius and the height are doubled, you obtain:
5. The factor is:
The answer is: B.
1. You have that the radius and the height of the cylinder are:
2. So, you must calculate the area:
3. Substitute the values into the formula:
4. When the radius and the height are doubled, you obtain:
5. The factor is:
The answer is: B.
Given that,
velocity, v = 7.8 ft/s
Radius, r = 1.25 ft
To find,
a. What is the acceleration of the bucket?
b. What is the velocity if the acceleration is 25 ft/sec²?
Solution,
(a) The centripetal acceleration is given by :
Put v = 7.8 ft/s and r = 1.25 ft
(b) Put a = 25 ft/s² to find velocity.
Hence, this is the required solution.