1 pts D Question 1 A football player kicks a football in a field goal attempt. W
ID: 1778015 • Letter: 1
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1 pts D Question 1 A football player kicks a football in a field goal attempt. When the football reaches its maximum height, what is the relationship between the direction of the velocity and acceleration vectors? Assume air resistance is negligible O At the maximum height, the velocity and acceleration vectors point in opposite directions O At the maximum height, both the velocity and acceleration vectors are zero. O At the maximum height, the velocity and acceleration vectors are parallel to cach other At the maximum height, the velocity and acceleration vectors are perpendicular to each other, D Question 2 1 pts A player kicks a soccer bal maximum height, how does its speed at this point compare to its initial speed? Assume air resistance is negligible I in a high arc toward the opponent's goal. When the soccer ball reaches its . The speed at its highest point is less than its initial speed. O The speed at its highest point is zero. O The speed at its highest point is greater than its initial speed. O The speed at its highest point is equal to its initial speed. O The speed at its highest point cannot be determined unless the angle at which the soccer ball is kicked is known.Explanation / Answer
1. at maximum height, there is only horizontal velocity.
and acceleration is always downward.
hnece they are perpendicular.
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2. at maximum height, vertical component becomes zero. It has only horizontal component.
hence Speed is always less than its initial speed.
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