Bob hits a tennis ball upward with a velocity of Vo= 30 y m/s from a height of 1 meter above the ground. a) Find the velocity of the ball after 2.5 seconds (Answer: 5.5y m/s  ) b) Find the position of the ball at this time (Answer: 45.4y m ) c) Plot acceleration, velocity, and position vs time.

A ball is dropped from a window 50 m above the ground. a) How long does it take the ball to reach theground?b) What is its final velocity?2. A pebble was dropped from the window of a building, 80 meters above the ground. a) How many seconds willit take the pebble to reach the ground? b) How fast is it after 2.0 seconds? c) When will its velocity be 25 m/s?3. A stone is tossed upward at the moment a ball is dropped from a height of 25 meters. The stone’s initialvelocity is 25 m/s. At what height will the two meet? In how many seconds.4. A ball is thrown downward with an initial velocity of 20 ft/s. a) How fast is it moving 2s later? b) How fardoes it fall in these time ?

Vertical Motion Problem. Round answers to nearest tenth. 13) A bascball player hits the ball during a game. The height of the ball as it travels through the air can be modeled by the equation: h = -16r + 851 + 10 abc Where h is the height of the ball in feet and t is the time in seconds. 2a 2. sh=-16V,t the a) What is the initial height of the ball? Ami- b) When will the ball hit the ground? 354 +10 -1617 (16-10) 2(6)=32 85 85 4. 7225 26 -8- t10.6 0 32 c) What is the maximum height the ball reaches in the air? 71

Erica throws a lawn dart upward from a height of 1 meter above the ground. The lawn dart reaches a maximum height of 40 m. a) Find the initial velocity of the lawn dart (Answer: 27.6ŷ ) b) How long after launch does the lawn dart reach its maximum height? (Answer: 2.82 s) c) How long after launch does the lawn dart hit the ground? (Answer: 5.68 s) d) What is the impact velocity of the lawn dart? (Answer: -28ŷ-) e) Plot the acceleration vs time and velocity vs time

What is the height of a projectile in 6 seconds if its initial height is 820 feet, and it has a velocity of 20 feet per second? O 328 ft O 342 ft O 364 ft O 386 ft

Please answer correctly. Thank you!!

Displacement VS. Time Need hep with B, C, D, E.

A ball is thrown straight up. What is the velocity and  acceleration of the ball at the higest point (peak)?   A. velocity = 0m/s and acceration = 9.8 m/s2 down.   B. velocity = 0 m/s  amd acceleration = 0 m/s2   C. velocity = 0 m/s and acceleration = 9.8 m/s2 up   D. velocity = 9.8 m/s up and acceleration = 0 m/s2

A physics 151 student at the top of a building drops water balloons from the edge. A stop watch indicates it takes 1.20 seconds for the balloon to hit the ground. In units of feet how tall is the building? Round final answer to 2nd decimal places. At the end of the problem you must state which direction you choose to be positive.

NASA has fired a rocket straight up into the air from ground level with an unknown initial velocity. It reaches a maximum height of 164,000 feet. This happened in Cape Canaveral therefore the rocket is under the acceleration of Earth's gavity in which we all know is -32 ft/sec/sec.                                           Please round your answers to two decimal places. a). Find the time it takes for the rocket to reach maximum height. b). find the initial velocity necessary to reach that height.