You throw a football straight up. Air resistance can be neglected. (a) When the football is 4.00 m above where it left your hand, it is moving upward at 0.500 m>s. What was the speed of the football when it left your hand? (b) How much time elapses from when the football leaves your hand until it is 4.00 m above your hand?

A ball is suspended from a light 1.3 m string . The string makes an angle of 24 degrees with the vertical. The ball is then kicked up and to the right such that the string remains taut the entire time the ball swings upwards. This kick gives the ball an initial velocity of 1.1m/s. What will be the speed, in meters per second, of the ball when it reaches its lowest point (θ = 0)?  What will be the maximum angle, in degrees, the string will make with the vertical?

A rock is thrown straight up into the air with an initial speed of 85 m/s at time  t = 0.  Ignore air resistance in this problem. At what times does it move with a speed of 13 m/s? Note: There are two answers to this problem.

From approximately what floor of a building must a car be dropped from an at rest position so that it reaches a speed of 80.7ft/s (55 mi/h) when it hits the ground? Each floor is 12ft. higher than the one below it.

of the ball when the goale bas vied muotizem z 2000 jeval alg Question 6. A golf ball rolls off a horizontal cliff with an initial speed of 10.3 m/s. The ball falls a vertical distance of 11.6 m into a lake below. (a) How much time does the ball spend in the air? (b) What is the speed v of the ball just before it strikes the water? Ans: 1.54 s; 18.36 m/s

An object is thrown vertically upwards with an initial velocity of +5 m/s and then comes back down. What is the final velocity when it returns to its initial height? Ignore air resistance.

While standing at the edge of the roof of a building, a man throws a stone upward with an initial speed of 6.71 m/s. The stone subsequently falls to the ground, which is 16.7 m below the point where the stone leaves his hand. At what speed does the stone impact the ground? Ignore air resistance and use g = 9.81 m/s² for the acceleration due to gravity. impact speed: m/s How much time is the stone in the air? elapsed time: S

A ball is thrown down with an initial speed of 3.00 m/s from a height of 7.00 m above the ground. What is its speed right before it hits the ground, in m/s? Use g = 10.0 m/s2.

An attacker at the base of a castle wall 3.55 m high throws a rock straight up with speed 8.30 m/s from a height of 1.60 m above the ground. (a) Will the rock reach the top of the wall? Yes O No (b) If so, what is its speed at the top? If not, what initial speed must it have to reach the top? m/s (c) Find the change in speed of a rock thrown straight down from the top of the wall at an initial speed of 8.30 m/s and moving between the same two points. m/s (d) Does the change in speed of the downward-moving rock agree with the magnitude of the speed change of the rock moving upward between the same elevations? O Yes No (e) Explain physically why it does or does not agree.

Kalea throws a baseball directly upward at time t = 0 at an initial speed of 14.5 m/s. How high h does the ball rise above its release point? Ignore air resistance and use g = 9.80 m/s². h = m