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Blizzard [7]
3 years ago
5

A projectile is launched at an angle into the air at velocity v and angle θ. Determine its vertical acceleration.

Physics
1 answer:
Vesna [10]3 years ago
5 0

g = t.u \sin(?)
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What can pressure be measured by?
SOVA2 [1]
'Pressure' is  (force) / (area).

The only choice with those units is #1 .
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How balance of oxygen and carbon dioxide in the atmosphere is maintained?
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Three observers watch a train pull away from a station toward the right of the platform. Observer A is in one of the train’s car
juin [17]

Observer A is moving inside the train

so here observer A will not be able to see the change in position of train as he is standing in the same reference frame

So here as per observer A the train will remain at rest and its not moving at all

Observer B is standing on the platform so here it is a stationary reference frame which is outside the moving body

So here observer B will see the actual motion of train which is moving in forward direction away from the platform

Observer C is inside other train which is moving in opposite direction on parallel track. So as per observer C the train is coming nearer to him at faster speed then the actual speed because they are moving in opposite direction

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Now as per Newton's II law

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Now if train apply the brakes the net force on it will be opposite to its motion

So we can say

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a = \frac{-F}{m}

so here acceleration negative will show that train will get slower and its distance with respect to us is now increasing with less rate

It is not affected by the gravity  because the gravity will cause the weight of train and this weight is always counterbalanced by normal force on the train

So there is no effect on train motion



5 0
3 years ago
Example of centrifugal force <br>(wrong answer will get reported)(right answer will get brainliest)​
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Vehicle driving round a curve

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3 years ago
-!!! URGENT !!!-
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Try this option, the answers are marked with colour.

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