a projectile is launched from ground level with an initial speed of 85 meters per second...
a projectile is launched from ground level with an initial speed of 85 meters per second at an angle 40 degrees with respect to horizontal. at the instant two seconds before the striking ground, determine the horizontal and vertical components of the velocity of the projectile
Homework Answers
We know that in projectile motion horizontal component is constant so,
Time of flight is given as:
So the projectile will be at highest point (where vertical velocity is zero) at
As we have to find velocity 2 sec before strike
But we know that from the highest point time taken by projectile to reach ground is
So time during which the vertical velocity will increases from 0 to v is given as:
sec
Therefore,
downward
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a projectile is launched from ground level with an initial speed
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