Baseball pitcher Josh Beckett throws a ball straight up in the air, the balls mass is 4kg, and he releases it at a speed of 35m/s, what is the maximum height that the ball will reach, and how long will it take for the ball to come back down and hit the ground next to him? Assume there is no air resistance, and the ball is released from and returns to a level of 0m.
Answers
Explanation:
Kinematics Special Equations Ad Ar Av Ar Problems 1. John Doe gets on the highway in his 1967 Shelbey 42 cobra. Starting from a dead stop at the bottom of the te on-ramp it can be assumed that John accelerates at a ra of 6.7 m/s2. How long does it take for John to reach a speed of 30 m/s? How far has John traveled in this time if you take his starting point to be 0 m? (4.5s, 68m) 2. Baseball pitcher Josh Beckett throws a ball straight up in the air, the balls mass is o.145 kg, and he releases it at a speed of 35m/s, what is the maximum height that the ball will reach, and how long will it take for the ball to come back down and hit the ground next to him? Assume there is no air resistance, and the ball is released from and returns to a level of o m. (7.1s,62m) 3. Baseball pitcher Roy Halladay throws a 40 m/s fastbal1 right down the center on a 3-2 count to strike out A. Rod. How long did it take for the ball to reach the batter if the pitcher's mound is 18m away from home plate? Also, how far did the ball drop in that time from the height that Halladay released it at? You can neglect air resistance. (0.45s, 0.99m) 4. An arrow leaves a bow with a speed of 42 m/s. Its velocity is reduced to 34 m/s by the time it hits its target. How much distance did the arrow travel over if it were in the air for 2.4 seconds? (-3.3m/s2, 92m) 5. At a drag race, a jet car travels 1/4 mile of the car and 5.2 seconds. What is the final speed its acceleration? (154m/s, 29.6m/s2) 6. A person taps his finger repeatedly. Their finger travels 2.5 cm before making contact with the table The finger tapping noise is heard once every 0.20 seconds. What is the impact speed of the finger with the top table? (0.5m/s) at 3.50 g' s. How much time wil1 it take to travel 2.00 km? (6.8s) 7. A jet is flying at 175 m/s when it begins to accelerate