An airplane releases a ball as it flies parallel to the ground at a height of h = 235 m as shown in the figure. If the ball lands on the ground a horizontal distance equal to the height h from the release point, calculate the speed v of the plane. Neglect any effects due to air resistance, and use g = 9.81 m/s2 for the acceleration due to gravity.

In the figure, a stone is projected at a cliff of height h with an initial speed of 42.0 m/s directed at an angle 00 = 69.0° above the horizontal. The stone strikes at A, 5.02 s after launching. Find (a) the height h of the cliff, (b) the speed of the stone just before impact at A, and (c) the maximum height H reached above the ground. H A (a) Number i Units (b) Number i Units (c) Number Units

At a particular instant, a hot air balloon is 50.3 m above a horizontal field and descending at a rate of 3.5 m/s. At this instant, a girl throws a ball horizontally (relative to herself) with an a speed of 12.3 m/s. When the balloon lands on the ground, how far is she from where the ball landed? Express your answer in meters and neglect air resistance.

A projectile is fired from a point 50 meter from a tall cliff at 75 m/sec and at angle of 50 degrees above the horizontal. It will strike the cliff at a point h above the cliff base. What is h? What is the final speed of the projectile when it hits the cliff in the problem above?

You are to throw a ball with a speed of 13.4 m/s at a target that is height h = 3.50 m above the level at which you release the ball (see the figure). You want the ball's velocity to be horizontal at the instant it reaches the target. (a) At what angle θ above the horizontal must you throw the ball? (b) What is the horizontal distance from the release point to the target? (c) What is the speed of the ball just as it reaches the target?

In the figure, a stone is projected at a cliff of height h with an initial speed of 45.0 m/s directed at an angle 0 = 54.0 ° above the horizontal. The stone strikes at A, 5.64 s after launching. Find (a) the height h of the cliff, (b) the speed of the stone just before impact at A, and (c) the maximum height H reached above the ground. PATA PA (a) Number i Units (b) Number i Units (c) Number Units > >

A woman stands at the edge of a cliff and throws a pebble horizontally over the edge with a speed of v0 = 20.5 m/s.The pebble leaves her hand at a height of h = 55.0 m above level ground at the bottom of the cliff, as shown in the figure. Note the coordinate system in the figure, where the origin is at the bottom of the cliff, directly below where the pebble leaves the hand. Answer parts a-f.

The same projectile experiment was conducted as you did in class. A racquet ball rolls down a track, leaves the track at an initial height of 0.961m above floor, with an exit speed Vexit = 1.40m/s at an angle exit = 7.46°. The landing spot was repeatedly measured for ten times, and the racquet ball's horizontal range data is provided below. Data run 1 2 3 4 5 Landing spot 0.585 0.590 0.595 0.590 0.585 (m) 6 7 8 9 0.580 0.580 0.585 0.580 Please determine the x and y components of the racquet ball's initial velocity below (use downward direction as the positive direction.) 10 0.575