v = ? 60 A ball is thrown with an initial speed of 20 m/s at an angle of 60° above the ground. If air resistance negligible, what is the ball's speed at the instant it reaches its maximum height from the ground? (Take g = 10 m/s²). (A) Zero (B) 10 m/s (C) 14 m/s (D) 17 m/s (E) 20 m/s

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Chapter3: Motion In Two Dimensions
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Problem 11CQ: A student throws a heavy red ball horizontally from a balcony of a tall building with an initial...
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Q2: *
v = ?
A ball is thrown with an initial speed of 20 m/s at an angle of 60° above the ground. If air
resistance negligible, what is the ball's speed at the instant it reaches its maximum height
from the ground?
(Take g = 10 m/s²).
(A) Zero
(B) 10 m/s
(C) 14 m/s
(D) 17 m/s
(E) 20 m/s
O A
В
O E
Transcribed Image Text:Q2: * v = ? A ball is thrown with an initial speed of 20 m/s at an angle of 60° above the ground. If air resistance negligible, what is the ball's speed at the instant it reaches its maximum height from the ground? (Take g = 10 m/s²). (A) Zero (B) 10 m/s (C) 14 m/s (D) 17 m/s (E) 20 m/s O A В O E
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