Respuesta :
Answer:
1) False. 2) True. 3) True. 4) False.
Step-by-step explanation:
1) False. The force of gravity will drive it down. The path will form a parabola.
2) True. There is no variation in the velocity in the horizontal axis and no force applied so the acceleration is zero.
3) True. The travel time depends on the height and the acceleration of gravity, and independent of the velocity of the rocket at launch.
4) False. The travel distance depends on the initial velocity of the rocket (at launch).
For a horizontal launch (θ0 = 0) at a fixed height ℎi > 0, the statements that are correct are statement 2 and 3.
What is projectile motion?
A projectile motion is when the object is launched near the surface of the earth and the object follows a curved path under the action of gravity only.
We know that when an object is launched in the horizontal direction such that the height of the launch is above the ground, then the object will follow a projectile motion, therefore, we will discuss the points according to projectile motion,
1.) The object is moving along a straight line.
The statement is false, the object is moving in a parabolic path.
(2) The acceleration in the horizontal direction is zero.
The statement is true, in a projectile motion the object is in constant velocity in the horizontal direction, therefore, the acceleration is zero.
3.) No matter how fast the object is launched, the travel time is always the same.
The statement is true, the travel time of the time for which the object is in the air is not dependent on the launch speed.
(4) No matter how fast the object is launched, the horizontal travel distance Δx is always the same.
The above statement is completely wrong the distance traveled by the object, also known as the range is depends upon the speed by which the object is being launched.
Thus, For a horizontal launch (θ = 0) at a fixed height ℎi > 0, the statements that are correct are statements 2 and 3.
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