23. A football kicker needs to kick the ball from a point 32.0 m (about 35 yd) f

Question

23. A football kicker needs to kick the ball from a point 32.0 m (about 35 yd) from the goal, a needs to clear the crossbar, which is 3.05 m high. As it is kicked, the ball leaves the go of 19.0 m/s at an angle of 44° to the horizontal. Does the ball clear or fall short of the crossbar? By what distance (in meters) does the ball clear or fall short of the bar? speed flatbed truck A 100 kg crate rests on a flatbed truck with a coefficient of friction between the crate and the that is 0.29. When the truck accelerates forward, what force accelerates the crate? What is the maximum acceleration the truck can undergo before the crate starts to sli What would the maximum acceleration be for a 50 kg crate in m/s ? 24. de? the following problem. Be sure to round correctly and give your final answer with the correct number of significant figures for the information given 25. Use the rules for significant figures and rounding that were covered in lesson 1 to calculate the answer to Use the equation: y- yo+ voyt +h gt to determine a value for y using the following information: yo 3.513 meters vo- 16.592 m/s and 0- 52.498 g--9.806 m/s t 5.618s y meters

Explanation / Answer

here,

23)

initial speed , u = 19 m/s

theta = 44 degree

horizontal distance , x = 32 m

the height at x = 32 m , y = x * tan(theta) - g * x^2 /( 2 * u^2 * cos^2(theta))

y = 32 * tan(44) - 9.81 * 32^2 /( 2 * 19^2 * cos^2(44)) m

y = 4.01 m

Yes the ball will clear the cross bar

dy = y - 3.05 m = 0.96 m

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