physics

posted by .

A ball is tossed so that it bounces off the ground, rises to a height of 0.90 m, and then hits the ground again 0.50 m away from the first bounce.
How long is the ball in the air between the two bounces?


What is the ball's velocity in the x-direction?


What is the ball's speed just before the second bounce?


What is the angle of the velocity vector with respect to the ground right after the first bounce?

  • physics -

    s = 1/2 at^2
    time to rise .9m:
    .9 = 1/2 (9.8) t^2
    t = .428 sec

    .5m/.428s = 1.17m/s

    v = at = 9.8*.428 = 4.19m/s

    h = -14.4x^2 + 7.2x
    h' = -28.8x + 7.2
    h'(0) = 7.2
    arctan(7.2) = 82 degrees

  • physics -

    what is acceleration ?

  • internatìonal school of lusaka -

    what is distance?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Calculus

    A ball is dropped from a height of 10 feet and bounces. Each bounce is ¨ú of the height of the bounce before. Thus, after the ball hits the floor for the first time, the ball rises to a height of 10(¨ú ) = 7.5 feet, and after it …
  2. physics

    A ball is launched from the ground at a 45 degree angle above the horizontal (which we take to be the x-axis). It rises to a maximum height, falls back down to the ground and bounces. After the bounce its velocity again makes a 45◦ …
  3. math

    a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous height. Calculate the total distance travelled by the ball when it hits the ground for the fifth time
  4. physics

    A ball is tossed so that it bounces off the ground, rises to height of 2 m, and then hits the ground again 0.75 m away from the first bounce. a. How long is the ball in the air between the two bounces?
  5. physics

    A ball dropped from a sixth floor window accelerates at 10 m/s After 2 seconds it hits the ground. It bounces back with a velocity of -15 m/s. What is the ball’s velocity when it hits the ground?
  6. Physics

    2. Consider the ball example in the introduction when a ball is dropped from 3 meters. After the ball bounces, it raises to a height of 2 meters. The mass of the ball is 0.5 kg a. What is the speed of the ball right before the bounce?
  7. 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?
  8. physics

    A ball of mass 0.1 kg, initially at rest, is dropped from height of 1 m. Ball hits the ground and bounces off the ground. Upon impact with the ground, its velocity reduces by 20%. The height (in m) to which the ball will rise is:
  9. math

    Here is the question: a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous height. Calculate the total distance travelled by the ball when it hits the ground …
  10. physics

    A ball of mass 0.1kg is dropped from a height of 8m into a hard floor and bounces back to a height of 2m calculate the velocity when the ball hits the ground, the velocity with which the ball leaves the ground,the momentum when the …

More Similar Questions