Physics, 17.10.2021 14:00 caudhdi11721
Consider a coin which is tossed straight up into the air. After it is released it moves upward, reaches its highest point and falls back down again.
While the coin is moving upward after being released, what would be its acceleration?
Take up to be the positive direction.
1. The acceleration is in the negative direc-
tion and increasing.
2. The acceleration is in the negative direc-
tion and decreasing
3. The acceleration is in the negative direc-
tion and constant.
4. The acceleration is in the positive direc-
tion and increasing.
5. The acceleration is in the positive direc-
tion and decreasing.
6. The acceleration is zero.
7. The acceleration is in the positive direc-
tion and constant.
Answers: 3
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The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.
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Consider a coin which is tossed straight up into the air. After it is released it moves upward, reac...
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