Physics

posted by .

A ball is allowed to fall freely from certain heightn. What distance it covers in 1st second?

  • Physics -

    d = 0.5g*t^2 = 4.9*1^2 = 4.9 m.

  • Physics -

    As we know that
    S=Vit+½at^2. a=g
    OR
    S=Vit+(0.5)gt^2
    As Vi=0 then it becomes
    S=(0.5)gt^2. g=9.8m/s..... (1)
    Putting values in eq (1).
    S=(0.5)(9.8)(1^2)
    S=(0.5)(9.8) 0.5=½
    OR
    S=g/2
    S=4.9m

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    After a jump, a skydiver reaches terminal speed in 10 seconds. Does he gain more speed during the first second of fall or the ninth second of fall?
  2. physics

    A baseball leaves a pitcher's hand horizontally at a speed of 115 km/h. The distance to the batter is 18.3 m. (Ignore the effect of air resistance.) (a) How long does the ball take to travel the first half of that distance?
  3. physics

    A baseball leaves a pitcher's hand horizontally at a speed of 115 km/h. The distance to the batter is 18.3 m. (Ignore the effect of air resistance.) (a) How long does the ball take to travel the first half of that distance?
  4. Physics

    a ball dropped from rest bag by a little boy from window of a three storey apartment how far has it fallen fter 3s What is the ball's velocity after 4 second of fall How far does ball fall during the lst 4 second?
  5. physics

    an object fall from rest of total height h and covers a distance of h/2 in last second find out time it remain in air
  6. Physics

    A ball is released and allowed to fall freely. How far will it have fallen in 2 seconds?
  7. Physics

    1. What is the speed of a 70kg rock after it has fallen freely for 1000m?
  8. Physics

    A metal ball of mass 2kg is allowed to fall freely from rest from height of 5m. Calculate potential energy it possesses and kinetic energy before it reaches the ground. What happens to mechanical energy of the ball after it hits the …
  9. Physics

    Two bodies begin to fall freely from the same height but 2nd one falls T seconds ater 1st.The time(after which the 1st body begin to fall) when the diatance between them is L is: Options 1.T/2 2.T/2+L/gT 3.L/gT 4.T+2L/gT I am not understanding …
  10. Physics

    I need some help on doing the process of the following problem: A body falls freely from rest and half of his fall is done in the last second. Calculate the total time of the fall. I know that the time on the first path is t-1. Also …

More Similar Questions