A track runner starts from rest and accelerates at 1.8 m/s^2 for 4.5 s. What
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Answer:
Step-by-step explanation:
a. Given that the sphere is symmetrical in nature. If we take a look at the yz-plane, over the hemisphere, the integral on the surface of x on both sides of the plane will annul each other and the outcome will be zero. However, the remaining two integrals will also be zero as a result of symmetry on the xy and xz planes.
Thus,
b. Recall that :
By applying the integral of the surface area.
(surface area of a sphere)
From above;
∴