Physics

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At an instant when a soccer ball is in contact with the foot of a player kicking it, the horizontal or x component of the ball's acceleration is 810m/s^2 and the vertical or y component of its acceleration is 110m/s^2. The ball's mass is 0.43kg. what is the magnitude of the net force acting on the soccer boll at this instant?

  • Physics -

    X = 810 m/s^2.
    Y = 110 m/s^2.

    a = sqrt(X^2 + Y^2),
    a = sqrt(656100+12100) = 814 m/s^2.

    Fn = ma = 0.43 * 814 = 350 N.=Net force.

  • Physics -

    Armadillos are incredibly good jumpers and can jump 92 cm to 122 cm (about 3-4 feet) into the air and tend to jump when scared. A Paulo the armadillo jumps with a speed of 4.7 m/s. How long is Paulo in the air.

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