QUESTION 1 25 points In the picture below, if the velocity is 10.4 m/s in magnit

Question

QUESTION 1 25 points In the picture below, if the velocity is 10.4 m/s in magnitude and makes an angle 24.6 degrees below the x axis, what is the y-component of the velocity (in unit of m/s)? QUESTION 2 25 points Save Answer Is the following statement true or false? Assuming negligible resistance, for an object in projectile motion, the horizontal component of its velocity remains constant. True O False QUESTION 3 25 points In the experiment, you determine that the exit velocity has a downward vertical component 0.532 m/s and the ball leaves the end of the track at height 3.19 m above floor. How much time does it take the ball to hit the floor? QUESTION 4 25 points Save Answer Assuming negligible air resistance, the only force acting on an object in projectile motion is gravity, acting in the vertical direction. Therefore, the object's vertical velocity will: O Remain Constant Change

Explanation / Answer

1) y component of velocity = 10.4*sin(24.6) = 4.32 m/s

2) True ( horizontal velocity constant but vertical velocity changes by 9.8m/s)

3) s= ut-1/2 gt2

3.19 = (0.532t) - ( 0.5*9.8*t2)

4.9t2 - 0.532t +3.19 = 0

solve for t

4) changes

5) 0=y1 + vy- (1/2 gt2)

6) Remains constant

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