e intial launch angle decreases, what happens to the maimum height and tight tim

Question

e intial launch angle decreases, what happens to the maimum height and tight time of the projectile? a. Maximum height decreases and flight time increases b. Maximum height increases and flight time decreases c. Maximum height and flight time both decrease d. Maximum height and flight time both increase How is range affected if velocity is doubled? a. Range is multiplied by 2 b. Range is squared c. Range is square-rooted d. Range is divided by 2 2. 3. An object is launched at a 30° angle at 5 m/s. What is the maximum height of the object? a. 5 m b. 1.25 m c. 30 m d. 25 m

Explanation / Answer

1)

Maximum height = u^2 (sin(theta))^2 / 2g

Time = 2 u sin(theta) /g

Since both are proportional to sin(theta), so decrease in angle will decrease both maximum height and time.

Option (c)

2)

Range = u^2 sin2(theta) /g

If u' = 2u

Range is squared

Option (b)

Comment in case any doubt please rate my answer  

According to the chegg guidelines I can answer one question at a time, so please post other questions seperately ...  

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.