A ball is thrown from point A with initial velocity of 10 m/s at 45°, it reaches the maximum height and, on the return, it hits horizontal surface 2 m above the initial level and bounces back at 20° with the surface, with half of the speed of impact. 1. How long will it take to reach point B? 2. What is its velocity at the time of impact at point B? 45° 3. What is the horizontal distance of the ball from A to C (same level)? 4. What is its final velocity at point C? 2m C

A ball is thrown from point A with initial velocity of 10 m/s at 45°, it reaches the maximum height and, on the return, it hits horizontal surface 2 m above the initial level and bounces back at 20° with the surface, with half of the speed of impact. 1. How long will it take to reach point B? 2. What is its velocity at the time of impact at point B? 45° 3. What is the horizontal distance of the ball from A to C (same level)? 4. What is its final velocity at point C? 2m C

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 38P: A fastball pitcher can throw a baseball at a speed of 40 m/s (90 mi/b). (a) Assuming the pitcher can...

See similar textbooks

Similar questions

Two planets in circular orbits around a star have speed of v and 2v . (a) What is the ratio of the orbital radii of the planets? (b) What is the ratio of their periods?
A fastball pitcher can throw a baseball at a speed of 40 m/s (90 mi/b). (a) Assuming the pitcher can release the ball 16.7 m from home plate so the ball is moving horizontally, how long does it take the ball to reach bone plate? (b) How far does the ball drop between the pitcher’s hand and home plate?
(a) A daredevil is attempting to jump his motorcycle over a line of buses parked end to end by driving up a 32° ramp at a speed of 40.0 m/s (144 km/h). How many buses can he clear if the top of the takeoff ramp is at the same height as the bus tops and the buses are 20.0 m long? (b) Discuss what your answer implies about the margin of error in this act—that is, consider how much greater the range is than the horizontal distance he must travel to miss the end of the last bus. (Neglect air resistance.)
A ball play throws a baseball at angle of 30° to the horizontal with a speed of a 30 m/s. A. How far will it go horizontally? B. What is the maximum height the ball will go? C. What is the velocity at the end of 3s? ANS. a. 79.5m b. 1.46s c. 29.72 m/s
A rock is thrown off a cliff at an angle of51ºwith respect to the horizontal. The cliff is 110 m high. The initial speed of the rock is 30 m/s. a.How high above the edge of the cliff does the rock rise? b.How far has it moved horizontally when it is at maximum altitude? ( c.How long after the release does it hit the ground? d.What is the range of the rock? e.What are the horizontal and vertical positions of the rock relative to the edge of the cliff att= 2.0 s,t= 4.0 s, andt= 6.0 s?
During new year, a fireworks shell is shot up in the alr with an initial velocity of 65m/s at an angle of 70° above the horizontal. The shell is designed to Ignite as it reached the highest point above the ground. B. How long will it take for the shell to reach the highest point and explode?
A ball is thrown toward a cliff of height h with a speed of 25m/s arid, an angle of 60? above horizontal. It lands on the edge of the cliff 3.5s later. Part A How high is the cliff? Part B What was the maximum height of the ball? Part C What is the ball's impact speed?
A projectile is fired from point O at the edge of a cliff, with an initial speed of 185 m/s at an angle of 60 degrees above the horizontal, as shown in the figure. The projectile rises and then falls into the sea at point P. The time of flight of the projectile is 40.0s. Ignore air resistance. a. What is the height of the cliff b. What is the horizontal distance D? c. What is the maximum height the projectile has reached during its flight? Give your answer measured from the sea level.
Two bascball players Bert and Casey would like to practice pitching and catching. Bert throws the bascball initially from a height of 1.76 m at a 30°-angle from the horizontal with a speed of 22 m/s. Cascy, initially 30 m away from Bert, runs in the direction of the motion of the baseball at the moment of its release to catch it at at a 1.6 m height. 22 m/s 30 m What should be the speed v. of Casey for her to catch the ball? 6.55 m/s O 19.05 m/s 5.77 m/s O 13.05 m/s
Tobio serves the ball with an initial velocity of 20.5 m/s at an angle of 18˚ from the horizontal, 1.2 m high from the floor. Assuming there is no air resistance and no spin is added to the ball, a. how long will it take for the ball to be just above the net if Tobio serves 10.2 m away from the net? b. how far above the net will the ball be if the standard height is 2.43 m? c. how far away from the net on the other side will the ball land? Is it still inside the court or is it outside? (Volleyball courts are 9 m wide and 18 m long divided equally by the net, so both teams have 9 x 9 m of space each.)
This is a Dynamics of Rigid Bodies subject. Thank you. A projectile is launched upward at an initial slope of 4 vertical and 3 horizontal. The ground sloped downward such that the projectile hits the ground at a point 2 m lower than that of the origin. The maximum height of the flight is attained at a horizontal distance of 8 m away from origin. a. What is the initial velocity of the projectile?b. What is the total horizontal distance travelled by the projectile?c. What is the maximum height attained by the projectile measured from the origin?
A marble rolls off a tabletop 0.70 m high and hits the floor at a point 2.1 m away from the table's edge in the horizontal direction. a.) How long (in s) is the marble in the air? b.) What is the marble's speed (in m/s) when it leaves the table's edge? c.) What is its speed (in m/s) when it hits the floor? m/s