Ask Question
25 May, 12:11

A small child gives a plastic frog a big push at the bottom of a slippery 2.0 meter long, 1.0 meter high ramp, starting it with a speed of 6.0 m/s. What is the frog's speed as it flies off the top of the ramp?

+4
Answers (1)
  1. 25 May, 15:30
    0
    First, let's find the angle of inclination using the tangent function.

    sin θ = opposite/hypotenuse = 1 m/2 m

    θ = 30°

    Assuming the ramp is frictionless, the force balance is:

    F = mgsinθ = ma

    Cancelling out m,

    a = gsinθ = (9.81 m/s²) (sin 30°) = 4.905 m/s²

    Using the equation for rectilinear motion at constant acceleration,

    x = v₀t + 0.5at²

    2 m = (6 m/s) (t) + 0.5 (4.905 m/s²) (t²)

    Solving for tm

    t = 0.297 seconds

    Using the equation for acceleration:

    a = (v - v₀) / t

    4.905 m/s² = (v - 6 m/s) / 0.297 s

    Solving for v,

    v = 7.46 m/s
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A small child gives a plastic frog a big push at the bottom of a slippery 2.0 meter long, 1.0 meter high ramp, starting it with a speed of ...” in 📘 Biology if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers