Motion with gravity Neglecting air resistance, the motion of an objectmoving vertically near Earth’s surface is determined by the acceleration due to gravity, which is approximately 9.8 m/s2. Suppose a stone is thrown vertically upward at t = 0 with a velocity of 40 m/s from the edge of a cliff that is 100 m above a river.a. Find the velocity ν(t) of the object, for t ≥ 0.b. Find the position s(t) of the object, for t ≥ 0.c. Find the maximum height of the object above the river.d. With what speed does the object strike the river?

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Projectile Motion