Question

In: Physics

Imagine an example of projectile motion in which the launch angle is 30o above the horizontal,...

Imagine an example of projectile motion in which the launch angle is 30^o above the horizontal, the launch position is 3 m above the ground, and the launch speed is 15 m/s. Where could you place a target on the ground so that it will “catch” the projectile when it lands?

Expert Solution

Initial velocity of projectile is

Initial horizontal velocity of projectile is

Initial vertical velocity of projectile is

Initial height of projectile is

The projectile lands on ground , horizontal distance traveled is and vertical distance traveled is

Using

In the vertical direction ( since )

In this time the horizontal distance traveled by projectile is .

In the horizontal direction, ( since )

Target must be placed at distance

genius_generous answered 2 years ago

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