To analyze the motion of a body that is traveling along a curved path, to determine the body’s acceleration, velocity, and position. A motor

Question

To analyze the motion of a body that is traveling along a curved path, to determine the body’s acceleration, velocity, and position. A motorcyclist travels around a curved path that has a radius of 250 ft . While traveling around the curved path, the motorcyclist increases speed by 1.05 ft/s2 . Part A – Finding the time interval for the motorcyclist to reach a given acceleration If the motorcyclist starts from rest, determine the time needed to reach an acceleration of 4.25ft/s2. Express your answer to three significant figures and include the appropriate units.

in progress 0
Phúc Điền 4 years 2021-08-25T10:29:07+00:00 1 Answers 8 views 0

Answers ( )

  1. Amity
    0
    2021-08-25T10:30:19+00:00
    Reply

    Answer:

    a^2 = ar^2 + al^2      where ar is the radial acceleration and al is the

    linear acceleration – since vectors ar and al are at right angles

    ar^2 = a^2 – al^2 = 4.25^2 – 1.05^2

    ar = 4.12 ft/s^2

    ar = V^2 / R     where ar is the radial acceleration

    So V^2 = ar * R = 4.12 * 250 = 1030 ft^2/s^2

    V = 32.1 m/s    the linear speed of the cycle

    Also, V = al t   or t = V / al = 32.1 / 1.05 = 30.6 sec

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )