# A ball mass 1000g is drop from a height Of 5m and rebounded to a height Of 25 m. Find i it kintentic just before impact ii its intial rebounce velocity and kintentic and show the working.

56,973 results
1. ## calculus

If a ball is thrown vertically upward from the roof of 64 foot building with a velocity of 64 ft/sec, its height after t seconds is s(t)=64+64t–16t2 . What is the maximum height the ball reaches? What is the velocity of the ball when it hits the ground

2. ## alg2

suppose you drop a tennis ball from a height of 15 feet. After the ball hits the floor, it rebounds to 85% of its previous height. How high will the ball rebound after its third bounce. round to the nearest tenth.. my teacher told be the answers 9.2 but i

3. ## algebra

A ball is thrown into the air with an upward velocity of 28 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 28t + 7. How long does it take the ball to reach its maximum height? What is the ball’s maximum height? How

4. ## Statistics

A golf ball is dropped from 15 different heights (in inches) and the height of the bounce is recorded (in inches.) The regression analysis gives the model y-hat = -0.4 + 0.70 (drop height) where y-hat is the predicted bounce height of the golf ball. A golf

5. ## science

A ball of mass 1 kg dropped from 9.8m height , strikes the ground and rebounds to a height of 4.9m .If the time of contact between ball and ground is 0.1s,then find impulse and average force acting on ball.

6. ## science

A student drops a basketball into a pool from a height of 5 meters while her friend records the approximate splash height. They want to make a bigger splash in their next trial. What is a way they can do this?(1 point) They can drop the same ball with less

7. ## Math( help please ! )

The height of a ball thrown vertically upward from a rooftop is modelled by y=-5t^2+20t+50 , where h(t) is the ball's height above the ground , in meters , at time t seconds after the throw a) Determine the max height of the ball b) how long does it take

8. ## physics

To test the quality of a tennis ball, you drop it onto the floor from a height of 4.31 m. It rebounds to a height of 2.51 m. If the ball is in contact with the floor for 12.6 ms, what is its average acceleration during that contact?

9. ## Math

You drop the rubber ball from height h it bounces back to 60% of its original height. Write an equation you can use to find the height h?

10. ## College Calculus

If a ball is thrown vertically upward from the roof of 48 foot building with a velocity of 96 ft/sec, its height after t seconds is s(t)=48+96t−16t^2. What is the maximum height the ball reaches? What is the velocity of the ball when it hits the ground

11. ## physics

Imagine that you throw a ball vertically upwards from the rooftop of a building. The ball abandons your hand at a point that has the same height as the railway of the rooftop with an ascending speed of 15m/s, been left in free falling. Coming down the ball

12. ## math

a student drop a rubber ball from a height of 8 feet . Each time the ball hits the ground, it bounces to 75% of its previous height. a/ how far does the ball travel between tne second and third bounces . b/ write an infinite series to model the total

13. ## basic chemistry(projectile)

A ball of mass 400g is thrown with an initial velocity of 30.0 ms-1 at an angle of 45.0 degrees to the horizontal.air resistance is negligible.the ball reaches a maximum height H after a time of 2.16s (1)calculate the initail kinetic energy of the ball?

14. ## Algebra

A bottle rocket launches into the air. The equation h=-16t^2+64t+9 gives the height of the ball, h in feet, as a function of t, number of seconds after launch. What is the maximum height the ball reaches? How many seconds does it take the ball to reach

15. ## mathematics

the height of a ball t seconds after it is thrown into the air from the top of the building can be modelled by h(t)= -16t2+48t+64 where h(t) is height in metres.how high is the building? how high does the ball rise before starting to drop downword, and

16. ## math

the height that a ball bounces varies directly as the height from which it is dropped. A ball dropped from a height of 20cm bounces 16cm a) Find the height of the bounce if the ball is dropped from a height of 280cm b) Find from waht height the ball was

17. ## physics

A ball of mass 1.2kg and a volume of 35cm cubed is dropped from a height of 2m. Determine the height to which this ball will bounce.

18. ## math

A ball is thrown into the air with an upward velocity of 48 /. Its height ℎ in feet after seconds is given by the function ℎ = −162 + 48 + 9. How long does it take the ball to reach is the maximum height? What is the ball’s maximum height? Round to

19. ## Math

17.Which roller coaster has the greatest lift height Top Thrill Dragster 18.What is the median lift height for the roller coasters lifted? Round to the nearest tenth. Not sure for this one 19.Arrange the given roller coasters from least to greatest lift

20. ## physics

You drop a ball from a height of 2.0 m and it bounces back to a height of 1.5 m (a) What fraction of its initial energy is lost during the bounce? (b) What is the ball’s speed just at it leaves the ground after the bounce?

21. ## Physics

You drop a ball from a height of 2.0 m and it bounces back to a height of 1.5 m (a) What fraction of its initial energy is lost during the bounce? (b) What is the ball’s speed just at it leaves the ground after the bounce?

22. ## physics

A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do. After each bounce the ball dissipates some energy, so eventually it comes to rest. The following pattern is observed: After the 1st

23. ## Pre Calc

Alice throws a ball straight up with an initial speed of 40 feet per second from a height of 5 feet? a) Find parametric equations that model the motion of the ball as a function of time. b) How long is the ball in the air? c) When is the ball at its

24. ## physics

A ball of mass m = 0.75 kg is thrown straight upward with an initial speed of 8.9 m/s. Plot the gravitational potential energy of the block from its launch height, y = 0, to the height y = 5.0 m. Let U = 0 correspond to y = 0. Determine the turning point

25. ## physics

a rubber ball of mass 50g falls from a height of 10 cm and rebounds to a height of 50 cm .determine the change in the linear momentum and average force between the ball and the ground taking time of contact as 0.1 sec

26. ## physics

A mass m = 76.0 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 19.7 m and finally a flat straight section at the same height as the center of the loop (19.7 m off the ground). Since the mass would not make it

27. ## physics

A mass m = 88 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it

28. ## Pre-Calculus

1. A projectile is fired straight up from a height of 6 feet. Its height (h) in feet after t seconds is given by h = 6 + 192t -16t^2. Answer: h = -16t^2 + 192t + 6 h = -16( t^2 -12t +36) + 6 +576 h = -16 (t-6)^2 +582 The maximum height will be 582 feet. 2.

29. ## physics

A rubber ball of mass 18.0 g is dropped from a height of 1.75 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?

30. ## Algebra

A ball is thrown into the air with an upward velocity of 28 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 28t + 7. How long does it take the ball to reach its maximum height? What is the ball’s maximum height? Round

31. ## Physics

A ball mass 1000g is drop from a height Of 5m and rebounded to a height Of 25 m. Find i it kintentic just before impact ii its intial rebounce velocity and kintentic and show the working.

32. ## Math

a bouncy ball rebounds to 90% of the height of the preceding bounce. jason drops a bouncy ball from initial height of 25 feet (a) write out the sequence of the height of the first 4 bounces. (b) derive an explicit formula for the rebound height of a bouncy

33. ## physics

To test the quality of a tennis ball, you drop it onto the floor from a height of 4.31 m. It rebounds to a height of 2.51 m. If the ball is in contact with the floor for 12.6 ms, what is its average acceleration during that contact?

34. ## Pre calc

Alice throws a ball straight up with an initial speed of 40 feet per second from a height of 5 feet? a) Find parametric equations that model the motion of the ball as a function of time. b) How long is the ball in the air? c) When is the ball at its

35. ## Physics

A ball of mass 100g is dropped from a height of 1.25m above the ground surface.It rebounds to a height of 1.1m.Find the velocity of the ball just before impact

36. ## Pre-Cal

A baseball player throws baseball at a velocity 139ft per second at an angle of 20 degrees. The ball leaves the players hand at a height of 5 feet. The path of the ball has a parametric equation x=v(o)t cos(o) and y-h+v(o)tsin(o)-16t^2. Write the

37. ## math

A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous bounce. After which bounce will the ball rebound to a maximum height of 1 ft?

38. ## Physics

A ball of mass 1000g drops from a height of 5m and rebounded to a height of 2.5m. Calculate I. It's kinetic energy before impact ii. It's initial rebound ,velocity and kinetic energy

39. ## Physics

A ball was dropped from a height of 80m above a concrete floor. It rebounded to a height of 0.5 of it's previous height at each rebound .After how many bounces is d ball 2.5m high

40. ## Physics

A small ball of mass m is placed on top of a large ball of mass 3m. Both balls are dropped simultaneously from a height h = 5.50 m as shown in the figure. Assuming the radius of the large ball and small are small and thus negligible in comparison to the

41. ## physics

A ball of mass m = 0.75 kg is thrown straight upward with an initial speed of 8.9 m/s. Plot the gravitational potential energy of the block from its launch height, y = 0, to the height y = 5.0 m. Let U = 0 correspond to y = 0. Determine the turning point

42. ## Math

The graph represents the height y, in feet, above the ground of a golf ball x seconds after it is hit. The maximum height of the golf ball occurs at x = 2. For up to 2.5 s after the ball is hit, its height is increasing. The maximum height of the golf ball

43. ## Physics

15)A small ball of mass m is aligned above a larger ball of mass M = 1.2 kg (with a slight separation, as with the baseball and basketball of Figure (a)), and the two are dropped simultaneously from height h = 2.4 m. (Assume the radius of each ball is

44. ## math

A ball is shot straight up from the top of a 15-story building. The motion of the ball could be described by the function: h(t)= -16t^2 + 144t + 160 where t represents the time the ball is in the air in seconds and h(t) represents the height in feet . What

45. ## science

a bouncing ball of mass 200g leaves the ground with a kinetic energy of 10J a)if the ball rises vertically, calculate the maximum height it is likely to reach. b)in practice, the ball rarely reaches the maximum height. explain why this is so.

46. ## Science

A ball is dropped from height of 8m above the ground. After striking the ground the ball rebound instantaneously with the same speed it struck the ground. The instant at which ball strike ground, another ball is drop from the same height. Find the height

47. ## Math Help (URGENT X10)

This is really urgent so please please please help. The height(H) of an object that has been dropped or thrown in the air is given by: H(t)=-4.9t^2+vt+h t=time in seconds(s) v=initial velocity in meters per second (m/s) h=initial height in meters(m)

48. ## MATH :-\

Stumped again .. A ball was dropped and measured rebound heights (in ft.) after each bounce. It was found that the rule y= 15(0.80^x) could be used to predict the rebound height of the ball, where y is the bounce height and x is the bounce number. From

49. ## physic

Two balls are conneted by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.81 kg and is held 0.5 m above the ground. Ball 2 has a mass of 6.3 kg and is held 0.28 m above the ground. When the balls are released, ball 2

50. ## math

Suppose that a ball has a rebound percentage of 75 and the ball is dropped from a height of 5ft onto the concrete below. Make a table of the data. Write a recursive rule for the data. Write a closed-form function rule for the data. What would the height of

51. ## Physics

The muzzle velocity of a ball bearing was calculated through an experiment (1.22m/s). A student then wants to verify that the velocity calculated is right. So, she conducts an experiment in which she points the ball bearing launcher upwards. She measures

52. ## Algebra

Suppose you drop a tennis ball from a height of 9 feet. After the ball hits the floor, it rebounds to 80% of its previous height. How high will the ball rebound after its third bounce? Round to the nearest tenth. A. 5.8 feet B. 1 feet C. 4.6 feet D. 7.2

53. ## physics

A superball is dropped from rest from a height of 2.0m. It bounces repeatedly from the floor, as superballs are prone to do. After each bounce the ball dissipates some energy, so eventually it comes to rest. The following pattern is observed: After the 1st

54. ## physics

a ball of mass 0.1kg makes an elastic head on collision with a ball of unknown mass,initially at rest .if the 0.1kg ball rebounded at one third of its original speed, what is the mass of the other ball?

55. ## algebra 1

ritvik tosses a ball from where he stands on a balcony to his friend on the ground. the height, in feet, of the ball can be represented by the function d(t) = 16t to the power of 2 + 16t + 9 where t represents time in seconds. part a: from what height was

He drops a ninja ball device from a height of 10.0m. The mass of the enter device is 190g and the mass of the top (smallest) ball is 2.90g A) calculate the momentum of the device as it hits the ground (ignore air resistance) I know that this answer is 2.66

57. ## math

a baseball is hit with an initial velocity of 75 feet per second from the height of 3 feet. The function h(t)=-16t squared + 75t + 3 models the path of the baseball where t represents the time in seconds that the ball has been traveling and h represents

58. ## math

Suppose you drop a ball from the top of a five-story building onto the sidewalk 70 feet below. a. What is the initial velocity of the ball? b.Determine a function for the height of the ball t seconds after it's released. c. How long will the ball be in the

59. ## Physics

For the first part of this question I got 12.12m/s B. With the help of a friend the boy measures the height to which the ball returns and finds it to be 5.2 meters. How fast was the ball moving when it left the ground? I wrote this down mass of ball:

60. ## physics

A rubber ball of mass 19.5 g is dropped from a height of 1.85 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?

61. ## Quadratic Relations, Algebra, Math

URGENT!! PLEASE HELP In a volleyball match. Jenny serves the volleyball at 14m/s, from a height of 2.5m above the court. The height o the ball in flight can be estimated using the equation h=-4.9t^2+14t+2.5, where h is the height, in meters, and t is the

62. ## calculus

A student throws a rubber ball upward from a height of 12 feet,initially at 8 feet per second. a.Write the position function that models the height of the ball t seconds after it was thrown. b.What is the maximum height of the ball?

63. ## Math

Solve the Go.a ball was dropped from a height 80m above a concrete floor. It rebounded to the height 1\2 of its previous height at each rebound. After how many bounces is the ball 2.5 high

64. ## physics

the coefficient of restitution between the ball and the floor is 0.60 If the ball is drop from rest at the height of 6.6 m from the floor. Find a) what is the maximum height will the ball attain after the first bounce. b) how much kinetic energy is lost

65. ## Science

You drop a ball, mass 117.1 grams from a height of 68.9 cm. It bounces back to a height of 48.1 from the floor. What is the change in gravitational potential energy from the moment it is dropped, to the moment it reaches the maximum height from the bounce?

66. ## physics

You drop a ball, mass 127.5 grams from a height of 83.0 cm. It bounces back to a height of 50.5 from the floor. What is the change in gravitational potential energy from the moment it is dropped, to the moment it reaches the maximum height from the bounce?

67. ## math

a rubber ball fell from a high of 16 feet and then its rebounded until it rested, such that each time it rebounded to a high =1/2 the high rebounded to previouslly a) find the high rebounded to after the 10th term b)find the distance cover by the ball

68. ## Math

The height(H) of an object that has been dropped or thrown in the air is given by: H(t)=-4.9t^2+vt+h t=time in seconds(s) v=initial velocity in meters per second (m/s) h=initial height in meters(m) H=height h=initial height I didn't make this clear on the

69. ## alg

suppose you drop a tennis ball from a height of 15 feet. After the ball hits the floor, it rebounds to 85% of its previous height. How high will the ball rebound after its third bounce. round to the nearest tenth.. my teacher told be the answers 9.2 but i

70. ## Physics

Two balls are connected by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.45 kg and is held 0.74 m above the ground. Ball 2 has a mass of 5.7 kg and is held 0.88 m above the ground. When the balls are released, ball 2

71. ## Energy of motion unit test

A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of water. Which investigation method should the student use?(1 point) She should drop two balls of the same mass from the same height.

72. ## Math

The height(h) of an object that has been dropped or thrown in the air is given by: h(t)=-4.9t^2+vt+h t=time in seconds(s) v=initial velocity in meters per second (m/s) h=initial height in meters(m) A ball is thrown vertically upwardd from the top of the

73. ## College Algebra

Alfred has just developed a new super ball and you have been asked to test its rebound capabilities. From your experiment you have found if you drop the ball from a height of 250 centimeters the first bounce average is 180 cm. rebound ratio = ? Using this

74. ## science

Science Experiment Determine a mathematical modelwhich describes the height of a ball in terms of th number of bounces after it has been droped from a given height. If a ball that bounces like a tenniis ball, is dropped from a given height, then it will

75. ## physics

You drop a ball from a height of 1.9m , and it bounces back to a height of 1.3m . a)What fraction of its initial energy is lost during the bounce? b)What is the ball's speed just before the bounce?

76. ## physics

A mass m = 88 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.5 m and finally a flat straight section at the same height as the center of the loop (15.5 m off the ground). Since the mass would not make it

77. ## Math( help please ! )

The height of a ball thrown vertically upward from a rooftop is modelled by h(t)=-5t^2=20t=50, where h(t) is the ball's height above the gorund,in meters, at time t seconds after the throw a) determine the maximum height of the ball b) how long does it

78. ## physics

A ball is dropped from rest from a height of h. It takes 1 second for the ball to drop from h/2 to the ground. From what height was the ball dropped?

79. ## Science

A ball is dropped from a height of 20 meter and rebounded with a velocity which is 3/4 of the velocity with which it hits the ground. What is time interval between the first and second bounces?

80. ## Physics

A ball is dropped from a height of 20 meter and rebounded with a velocity which is 3 by 4 of the velocity with which it hits the ground. What is time interval between the first and second bounces?

81. ## PHYSICS

You drop a ball from a height of 2.8 m, and it bounces back to a height of 1.4 m. (Ignore air resistance.) (a) What fraction of its initial energy is lost during the bounce? (b) What is the ball's speed just as it leaves the ground after the bounce? m/s

82. ## physics

You drop a ball from a height of 2.8 m, and it bounces back to a height of 1.0 m. (Ignore air resistance.) (a) What fraction of its initial energy is lost during the bounce? b) What is the ball's speed just as it leaves the ground after the bounce? (c)

83. ## math

Vernon Wells hits a baseball that travels for 142m before it lands. The flight of the ball can be modeled by a quadratic function in which x is the horizontal distance the ball has traveled away from Vernon, and h(x) is the height of the ball at that

84. ## 11

A ball is dropped vertically from height of 30 meters after bounces.The ball reaches a max height to 60% of height of the previous bounce. What are the terms of the sequence. What is the height to the nearest tenth of a meter of the ball after the tenth

85. ## physics

I did a projectile motion lab, predicting where a ball would land before actually dropping it. I have to answer this question: you accounted for variations in the velocity measurement in your range prediction. Are there other measurements you used which

86. ## Math

Suppose you drop a ball from the top of a five-story building onto the sidewalk 70 ft below. a. What is the initial velocity of the ball? b. Determine a function for the height of the ball t seconds after it's released. c. How long will the ball be in the

87. ## physics

A ball is thrown vertically upward with a speed of 20 m/s from the ground. The ball moves without resistance. First, find the maximum height the ball reaches. The ball falls to the ground. Assume that the ball loses 10% of its energy, after each fall to

88. ## Physics

A ball of mass 0.100 kg is thrown into the air with a speed of 6.0 m/s and from a height of 2.0m. What is the mechanical energy of the ball when it has a height of 5.0 m.

89. ## math

If a ball is thrown vertically upward from the roof of 32 foot building with a velocity of 80 ft/sec, its height after t seconds is s(t)=32+80t–16t2. What is the maximum height the ball reaches? What is the velocity of the ball when it hits the ground

90. ## physics

A mass m = 88.0 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius R = 15.8 m and finally a flat straight section at the same height as the center of the loop (15.8 m off the ground). Since the mass would not make it

91. ## Math

The path of a basketball foul shot is modelled by the relation h=-0.44d*2+4.4d+7, where h is the height in feet and d is the horizontal distance in feet. At what height is the ball released? What was the maximum height the ball reached? The centre of the

92. ## physics

Two balls are connected by a string that stretches over a massless, frictionless pulley. Ball 1 has a mass of 0.45 kg and is held 0.74 m above the ground. Ball 2 has a mass of 5.7 kg and is held 0.88 m above the ground. When the balls are released, ball 2

93. ## math

A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous bounce. After which bounce will the ball rebound to a maximum height of 1 ft?

94. ## math

The only part of the height equation that we have not discussed is the constant. You have probably noticed that the constant is always equal to the initial height of the ball (80 m in our previous exercises). Now, let’s have you develop a height

95. ## Physics

A rubber ball of mass 41.5 g is dropped from a height of 1.75 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?

96. ## physics

A rubber ball of mass 43.5 g is dropped from a height of 2.05 m onto a floor. The velocity of the ball is reversed by the collision with the floor, and the ball rebounds to a height of 1.55 m. What impulse was applied to the ball during the collision?

97. ## preparation

a ball of mass .1kg initially at rest is dropped from height of 1 meter.ball hits the ground and bounces off the ground.upon impact with the ground its velocity reduces by 20%.the height to which the ball will rise is?

98. ## Science

A ball of mass 200 g is dropped from a height 3 m above the ground onto a hard floor, and rebounds to a height of 2.2 m. If the ball is in contact with the floor for 0.002 s calculate the average force exerted by the floor on the ball

99. ## Physics

A ball is thrown vertically upwards from the ground and it reaches a height of 20m. Calculate the speed the ball had when it was launched. I don't know how to solve this due to the fact that in the problem we only have the height as data , not even mass.

100. ## Physics

Can you help me through this one? I don't want just the answer: A ball is thrown straight up and rises to a maximum height of 24 m above the ground. At what height is the speed of the ball equal to half of its initial value? Assume that the ball starts at