11)Which has more momentum, an elephant standing still or a raisin dropped from your hand?
The raisin
12)A player kicks a football with an initial velocity of 3.00 m/s at an angle of 60.0 above the horizontal. What is the horizontal distance traveled by the football?
A)0.312 m
B)0.397 m
C)0.673 m
D)0.795 m
3.00sine60
=2.6
0.0 m+(2.6 m/s)(2.6-0.0/9.80)+1/2(-9.80)(2.6-0.0/9.80)^2
=0.0+.69+1/2(-9.80)(2.6-0.0/9.80)^2
=.69+-4.9(.070387339)
I can't get one of those choices
11) Correct
12) Separate the velocitie into vertical and horizontal components. Take the vertical velocity component and calculate how long the ball is in the air. Then, using that time and the horizontal component of the velocity, calculate the horizontal distance traveled.
I did get one of the shown answers.
To find the horizontal distance traveled by the football, you can use the equations of projectile motion.
First, you need to find the initial horizontal velocity of the football. This can be found by multiplying the initial velocity (3.00 m/s) by the cosine of the angle (60 degrees):
Initial horizontal velocity = 3.00 m/s * cos(60 degrees) = 3.00 m/s * 0.5 = 1.50 m/s
Next, you need to find the time of flight of the football. This can be calculated using the equation:
Time of flight = (2 * initial vertical velocity) / acceleration due to gravity
Since the football is launched at an angle, the initial vertical velocity can be found by multiplying the initial velocity by the sine of the angle:
Initial vertical velocity = 3.00 m/s * sin(60 degrees) = 3.00 m/s * 0.866 = 2.60 m/s
Time of flight = (2 * 2.60 m/s) / 9.80 m/s^2 = 0.53 seconds
Finally, you can find the horizontal distance traveled by the football using the equation:
Horizontal distance = initial horizontal velocity * time of flight
= 1.50 m/s * 0.53 s = 0.795 meters
Therefore, the correct answer is D) 0.795 m, which matches the calculated result.