A Ball Is Thrown with an Initial Velocity of 20

question 120

Multiple Choice

A ball is thrown with an initial velocity of 20 m/s at an angle of 60° above the horizontal.If we can neglect air,what is the horizontal component of its instantaneous velocity at the exact top of its trajectory?

• A)10 m/s
• B)17 m/s
• C)20 m/s
• D)zero

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Definitions:

Celsius

A scale and unit of measurement for temperature where 0° represents the freezing point of water, and 100° represents the boiling point at sea level.

Body Mass Index

A numerical value derived from a person’s weight and height, used to classify underweight, normal weight, overweight, and obesity.

BMI

Body Mass Index, a measure calculated from a person's weight and height, used to classify underweight, normal weight, overweight, or obesity.

Celsius

A scale for temperature in which 0 degrees represents the freezing point of water and 100 degrees its boiling point at sea level.