Physics

A 2kg block rests at the edge of a platform that is 10m above ground level.The block launched horizontally from the edge of the platform with an initial speed of 3m/s. Air resistance is negligible.what is the time taken for the block to reach the ground?

  1. 👍
  2. 👎
  3. 👁
  1. time to fall: t=sqrt(2h/g)
    solve that for time.

    1. 👍
    2. 👎
  2. vertical free fall equation ... h = -1/2 g t^2 + Vo t + Ho

    0 = -1/2 * 9.8 * t^2 + 0 + 10 = -4.9 t^2 + 10

    solve for t (quadratic formula)

    the horizontal motion has no effect on the flight time

    1. 👍
    2. 👎
  3. 0.5g*t^2 = 10.
    4.9t^2 = 10,
    t = 1.43 s.

    1. 👍
    2. 👎
  4. what??????????????????????????????????

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. math-precalculus

    A Ferris wheel is 50 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 6

  2. Physics

    A metal block of mass 5kg lies on a rough horizontal platform. If a horizontal force of 8 N applied to the block through its center of mass just slides the block on the platform, then the coefficient of limiting friction between

  3. precalculus

    A Ferris wheel is 25 meters in diameter and boarded from a platform that is 2 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 4

  4. n

    A ferris wheel is 20 meters in diameter and boarded from a platform that is 1 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 6

  1. Math

    Here is the question : A Ferris wheel is 40 meters in diameter and boarded from a platform that is 5 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1

  2. Physics

    A block of mass m = 2.00 kg rests on the left edge of a block of mass M = 8.00 kg. The coefficient of kinetic friction between the two blocks is 0.300, and the surface on which the 8.00- kg block rests is frictionless. A constant

  3. friction

    A 40 kg slab rests on a friction less floor.a 10 kg block rests on top of the slab.the coefficient kinetic friction between the block and the slab is 0.40.a horizontal force of 100N is applied on the 10 kg block.find the resulting

  4. Physics

    1)How much work is done by a person lifting a 2 kg object from the bottom of a well at a constant speed of 2m/s for 5 s. Is the answer mgh=2*9.8*10m 2)A 2kg block slides on a rough horizontal surface. A force (magnitude = 4N)

  1. precalculus

    A ferris wheel is 20 meters in diameter and boarded from a platform that is 3 meters above the ground. The six o'clock position on the ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 10

  2. physics

    A thin 2kg box rests on a 6kg board 50cm long with 20cm hanging off the edge of a table. How far can the center of the box be from the end of the table before the board begins to tilt?

  3. Physics Dynamics

    A 4-kg block is connected by means of a massless rope to a 2-kg block. What is the magnitude of the acceleration if the coefficient of kinetic friction between the 4-kg block and the surface is 0.20? Note : The 4kg block is on the

  4. Physics

    A block with mass M = 5.00 kg rests on a frictionless table and is attached by a horizontal spring (k = 130 N/m) to a wall. A second block, of mass m = 1.25 kg rests on top of M. The blocks are displaced by 10 cm then released. If

You can view more similar questions or ask a new question.