II. SOLVE. Solve the problem below. 10pts.
The velocity of a falling body varies directly as the time of flight. If the velocity of the
falling body at the end of 2 seconds is 64.4 ft/s, find the velocity at the end of 5 seconds.
1.
Give its mathematical equation.
2. Find the constant of variation.
3. Solve for the velocity.
The velocity of a falling body varies directly as the time of flight. If the velocity of the
falling body at the end of 2 seconds is 64.4 ft/s, find the velocity at the end of 5 seconds.
1.
Give its mathematical equation.
2. Find the constant of variation.
3. Solve for the velocity.
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Answer:
1.V=kt
64.4ft./s=k2s
2.k=32.2ft
3.V=32.2ft(5s)
V=161 ft/s