Question Detail

PHY 101 PHY 101 Past Questions Objective Question
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Question

A golf ball is hit with an initial vertical speed of 30 m/s and an initial horizontal speed of 20 m/s. How long will the ball remain in the air? (Neglect air resistance.)
Options
A 5 s
B 6 s
Correct Answer
C 4 s
D 5.5 s
Correct Answer

Option B is the correct answer.

Detailed Explanation

Time of flight = 2u_y/g = 2×30/9.8 = 60/9.8 = 6.12 s ≈ 6 s.

Hint

T = 2u_y/g for symmetric trajectory.

Question Info

Course: PHY 101
Topic: PHY 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 1036 of 1250
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