Which of these statements are correct?
A ball with a velocity of 10 m/s at an angle of 30 degrees with the horizontal has a vertical velocity of 5 m/s.
A ball thrown up at 10m/s from a height of 5 m will strike the ground 1 second later.
A ball thrown up at 10m/s from a height of 15 m will strike the ground 3 seconds later.
A ball with a velocity of 10 m/s at an angle of 30 degrees with the horizontal has a horizontal velocity of 5 m/s.
The vertical component of a vector is found by multiplying the total vector by the cosine of the angle.
A boy walks 9 m west and then 12 meters north, the magnitude of the displacement is 15m.
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Which of these statements are correct?
A ball with a velocity of 10 m/s at an angle of 30 degrees w...
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