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WARRIOR [948]
3 years ago
10

what is the acceleration of a bowling ball that starts at rest and moves 300m down the gutter in 22.4 sec

Physics
1 answer:
exis [7]3 years ago
7 0
<span>Acceleration is the change in velocity divided by time taken. It has both magnitude and direction. In this problem, the change in velocity would first have to be calculated. Velocity is distance divided by time. Therefore, the velocity here would be 300 m divided by 22.4 seconds. This gives a velocity of 13.3928 m/s. Since acceleration is velocity divided by time, it would be 13.3928 divided by 22.4, giving a final solution of 0.598 m/s^2.</span>
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Explanation:

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Y axis  

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let's use trigonometry to find the components of the weight

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from equation 1

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in this case the block is still still so a = 0

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We can see that the quantities in parentheses with constants, so as the angle increases, the applied force must be less.

This is the force that balances the friction force, any force slightly greater than F initiates the movement.

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the correct answer is to increase the angle of the plane

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