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S_A_V [24]
3 years ago
8

a soccer ball is kicked horizontally off a cliff with an initial speed of 8 m/s and lands 16 m from the base of the cliff What i

s the time of flight of the soccer ball?
Physics
2 answers:
Drupady [299]3 years ago
8 0
2 seconds because time=distance/speed so time=16/8 which gives 2
Charra [1.4K]3 years ago
7 0
<h3>Answer: 2 seconds</h3>

This problem is equivalent to kicking the ball 8 m/s and it rolls to a point 16 meters away, and everything is on a flat ground (with no cliff). This is because the horizontal component of the velocity does not get affected by how tall the cliff is and the force of gravity. Note how the height of the cliff isn't even mentioned. So that's a clue that we can ignore it.

If x is the number of seconds, then 8x is the distance in meters it travels. So we have 8x = 16 solve to x = 2. The ball travels for 2 seconds before reaching its target.

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7 0
3 years ago
Read 2 more answers
An emf of 0.50 v is induced across a coil when the current through it changes uniformly from 0.55 to 0.95 a in 0.40 s. what is t
love history [14]

The correct answer is 0.67 h

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The shift in current occurs in a period of time when dt = 0.40 s.

The self-inductance is determined as follows:

The current change rate is represented here by dI/dt.

Step 2 After entering the values,

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The definition of self inductance is the induction of a voltage in a wire that carries current when the current in the wire is changing. When there is self-inductance, a circuit's own changing current creates a magnetic field that causes a voltage to be induced.

Learn more about Self inductance here :-

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