LindaCat78
11.02.2020 •
Physics
A runner is running on a circular track, which is 200 m in circumference. Find the magnitude of his acceleration in m/s2 when he is running at a constant speed of 10.8 m/s.
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Ответ:
K = 1/2 m x v^2
m = mass on the cart
V = velocity imparted to the cart
KA = 1/2 mA x vA^2(1)
KB = 1/2 mB x vB^2(2)
Diving equation 1 by equation 2, we get -
KA/KB = mA/mB
= 2
KA = 2 x KB
Option A is correct