A student fires a bullet horizontally from a gun. Which statement is most accura

Question

A student fires a bullet horizontally from a gun. Which statement is most accurate? The bullet will start to fall as soon as it leaves the gun. The bullet will move horizontally for some time before it starts to fall. The bullet will travel horizontally without falling. The question does not provide enough information. 7 of 20 A ball is attached to the center of the ceiling inside of a van moving at constant speed. If the ball is released, where will the ball land? Directly below its starting position (middle of the van) Towards the front of the van Towards the back of the van Depends on the mass of the ball 8 of 20 Vector A has components A- m/s and vector B has components B-?6,-2 m/s. What is the magnitude of vector C if C = A + B? 25 m/s 5 m/s 11 m/s 7 m/s

Explanation / Answer

The bullet moves horizontally for sometime before is starts to fall, as gravity acts upon it. A bullet follows a straight path only inside the barrel. Once it is fired, it follows a wide parabolic path.

7) If the van is moving at a constant speed, the ball will also have a relative velocity with respect to the van. Thus, the ball will fall directly below its starting position, that is, in the middle of the van.

8) A = -2i + 5j
B = 6i -2j
C = A+B = (-2i + 5j) + (6i -2j)
= 4i +3j

Magnitude of C = sqrt (42 +32)
= sqrt (25)
= 5 m/s

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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