I\'m having trouble with these problems. There are a YES or NO types of question

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I'm having trouble with these problems. There are a YES or NO types of questions. Any help will be great.

https://elearning.utdallas.edu/bbcswebdav/pid1060826-dt-content-rid-10365169-1/courses/2162-merged-phys2125all/Lab05-Manual.pdf :: Apps How to Make a Sab. Calculus l Notes se Dreispitz e sugardale: How to YUKATA KIMONO M. G lady sour tvb-Go % Vegan Entrée Recipe f Wool Blend Pleated Other bookmarks » 2g (Vo sin )2. (2) For the 0-0 case in Figure 1 (horizontal launch), are the statements below correct? (Ig- nore any effect of friction.) 1. The object is moving along a straight line. 2. No matter how fast the object is launched, the travel time (before the object hits the ground) is always the same 3. No matter how fast the object is launched, its maximum height is always the same 4. Given h, > 0, the magnitude of velocity when the object hits the ground is always larger than the magnitude of the initial velocity (3) For the 0-90° case in Figure 1 (vertical launch), are the statements below correct? (Ignore any effect of friction.) 1. The object is moving along a straight line. PHYS2125 Physics Laboratory The University of Texas at Dallas 2. No matter how fast the object is launched, the travel time (before the object hits the ground) is always the same 3. No matter how fast the object is launched, its maximum height is always the same 4. Given hj > 0, the magnitude of velocity when the object hits the ground is always larger than the magnitude of the initial velocity (4) In a projectile experiment (as in Figure 1), do the measurements below provide one with enough information to compute the travel time of the object? (lgnore any effect of friction.) 1. In a trial of horizontal launch, the initial height is measured but the horizontal travel range 2. In a trial of horizontal launch, the horizontal travel range and the initial velocity are meas- 3. In a trial of vertical launch, the initial height is measured but the maximum height and the 4. In a trial of vertical launch, the initial height and maximum height are measured but the ini- and the initial velocity are not measured ured but the initial height is not measured initial velocity are not measured tial velocity is not measured

Explanation / Answer

4)

1)

True . since alongvertical direction we have initial velocity (0 ) , acceleration (-9.8) , vertical displacement (height)

2)

True

time = horizontal range / initial velocity

3)

false

4)

true .   we can consider the motion from given height to maximum height . at maximum height . final velocity is 0, we can calculate initial velocity and then the time of flight

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