Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects
-A projectile is launched from the origin at an angle of $\alpha$ radians to the horizontal and an initial speed of Find the position function r(t) for this projectile.
A) r(t) = ( 75t cos $\alpha$ - 32 )i + ( 75t sin $\alpha$)j
B) r(t) = ( 75t sin $\alpha$)i + ( 75t cos $\alpha$ - 16 )j
C) r(t) = ( 75t cos $\alpha$)i + ( 75t sin $\alpha$ - 16 )j
D) r(t) = ( 75t sin $\alpha$ - 16 )i + ( 75t cos $\alpha$)j

Question

Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects
-A projectile is launched from the origin at an angle of $\alpha$ radians to the horizontal and an initial speed of  Find the position function r(t) for this projectile.
A) r(t) = ( 75t cos $\alpha$ - 32 )i + ( 75t sin $\alpha$)j 
B) r(t) = ( 75t sin $\alpha$)i + ( 75t cos $\alpha$ - 16 )j 
C) r(t) = ( 75t cos $\alpha$)i + ( 75t sin $\alpha$ - 16 )j 
D) r(t) = ( 75t sin $\alpha$ - 16 )i + ( 75t cos $\alpha$)j

Quizplus · Accepted Answer

The Answer of Solve the problem. Assume the x-axis is horizontal, the positive y-axis is vertical (opposite g), the ground is horizontal, and only the gravitational force acts on the objects
-A projectile is launched from the origin at an angle of $\alpha$ radians to the horizontal and an initial speed of  Find the position function r(t) for this projectile.
A) r(t) = ( 75t cos $\alpha$ - 32 )i + ( 75t sin $\alpha$)j 
B) r(t) = ( 75t sin $\alpha$)i + ( 75t cos $\alpha$ - 16 )j 
C) r(t) = ( 75t cos $\alpha$)i + ( 75t sin $\alpha$ - 16 )j 
D) r(t) = ( 75t sin $\alpha$ - 16 )i + ( 75t cos $\alpha$)j

Solve the Problem α\alphaα Radians to the Horizontal and an Initial Speed of

Solve the Problem $\alpha$ Radians to the Horizontal and an Initial Speed of