Projectiles: a Child Throws a Ball with an Initial Speed

question 19

Essay

Projectiles: A child throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. The ball leaves her hand 1.00 m above the ground and experience negligible air resistance.
(a) What is the magnitude of the ball's velocity just before it hits the ground?
(b) At what angle below the horizontal does the ball approach the ground?

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Definitions:

Rotary

Refers to something revolving around a center or axis, such as a rotary engine or a rotary dial.

Ear Ossicles

The three small bones in the middle ear known as the malleus, incus, and stapes, which transmit sound vibrations from the eardrum to the inner ear.

Visual Accessory

Visual accessory refers to items or devices that enhance or support vision, such as glasses, contact lenses, or magnifying tools.

Eyeball

The spherical part of the eye that contains the optic components necessary for vision.