4. A physics student is building a tower from which he will launch a ball at 32 m/s at an angle of 25° above the horizontal in order to hit a target on the ground 117 m away. How tall must the tower be?' 32 m/s 25°

3. A baseball batter hits a baseball when it is a height of 85cm above the ground with an angle of 35° above the horizontal with an initial speed of 35m/s. Does it clear the 4.5 meter tall fence a distance of 125m away?

A cannon sits on top of a vertical tower 264 feet tall. It fees a cannonball at 80 ft/s. If the barrel of the cannon is elevated 30 degrees from the horizontal, find how far from the base of the tower the cannonball will land (assuming the ground around the tower is level.

A projectile is launched with an initial velocity v at an angle of theta with respect to the x axis.  Calculate vox, voy, t, ymax, xmax if:   v0 theta 1.25E+02 6.00E+01

A projectile is fired with a speed of 15m/s at an angle of elevation of 30 degrees above the horizontal. a) At what height will it strike a vertical wall distant 18m horizontally from the gun? b) Find the magnitude and direction of its velocity when it strikes the wall.

Children playing in a playground on the flat roof of a city school lose their ball to the parking lot below. One of the teachers kicks the ball back up to the children as shown in the figure below. The playground is 4.80 m above the parking lot, and the school building's vertical wall is h = 6.30 m high, forming a 1.50 m high railing around the playground. The ball is launched at an angle of 0 53.0° above the horizontal at a point d = 24.0 m from the base of the building wall. The ball takes 2.20 s to reach a point vertically above the wall. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) = (a) Find the speed (in m/s) at which the ball was launched. 18.1 m/s (b) Find the vertical distance (in m) by which the ball clears the wall. 1.785666 (c) Find the horizontal distance (in m) from the wall to the point on the roof where the ball lands. m m (d) What If? If the teacher always launches the ball…

10. Determine the horizontal distance at which the maximum height occurs for a projectile that is launched with an initial speed of 15 m /s and an initial angle of 55°.

A projectile launcher can launch a projectile with a speed of 38 m/s.  At what angle should a projectile be launched to hit a target at a height 17 m a horizontal distance 20 m away?

1. A projectile is fired from the edge of a building 11.0 m tall. The projectile just clears a 20.0 m high wall some distance away with a velocity given by 0 = (13.07 – 7.507) m/s. (a) Find the angle above the horizontal at which the projective is fired. (b) Determine the horizontal distance between the building and the wall. (c) How much time elapses between the instant the projectile is fired and the time it hits the ground beyond the wall.

A rifle that shoots bullets at 451 m/s is to be aimed at a target 43.6 m away. If the center of the target is level with the rifle, how high above the target must the rifle barrel be pointed so that the bullet hits dead center?