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Ad libitum [116K]
3 years ago
12

I throw a football in the x direction with a fore of 124N. The football is 4 kilograms. The football accelerated for 5 seconds.

And then the ball moves at a constant velocity. What was the acceleration in the x direction?​
Physics
1 answer:
castortr0y [4]3 years ago
6 0

31 (unit)

acceleration formula

                             net force (124)

     Acceleration = -------------

                                mass     (4)

124÷4=31

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Describe the relationship between the length and period of a pendulum in the language of direct proportions
Wittaler [7]

The period of the pendulum is directly proportional to the square root of the length of the pendulum

Explanation:

The period of a simple pendulum is given by the equation

T=2\pi \sqrt{\frac{L}{g}}

where

T is the period

L is the length of the pendulum

g is the acceleration of gravity

From the equation, we see that when the length of the pendulum increases, the period of the pendulum increases as the square root of L, T\propto \sqrt{L}. This means that

The period of the pendulum is directly proportional to the square root of the length of the pendulum

From the equation, we also notice that the period of a pendulum does not depend on its mass.

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Explanation:

Using the equations of motion, we can obtain the velocity of the ball as it hits the ground.

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Mass = 100 g = 0.1 kg, velocity = 15.34 m/s

Momentum = 0.1 × 15.34 = 1.534 kgm/s

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