4. [0/1 Points] DETAILS PREVIOUS ANSWERS SCALC9 3.9.013. Find the most general antiderivative of the function. (Check your answer by differentiation. Use C for the constant of the antiderivative.) f( x) = 8\\ x - 7Vx F(x) = 8x - 21 . C X 5. [-/1 Points] DETAILS SCALC9 3.9.059. A particle is moving with the given data. Find the position of the particle, s(t). v(t) = 3 cos(t) + 5 sin(t), s(0) = 4 s (t ) = 6. [-/4 Points] DETAILS SCALC9 3.9.065. A stone is dropped from the upper observation deck of a tower, 200 m above the ground. (Assume g = 9.8 m/s2.) (a) Find the distance (in meters) of the stone above ground at time t. s(t) = (b) How long does it take the stone to reach the ground? (Round your answer to two decimal places.) (c) With what velocity does it strike the ground? (Round your answer to one decimal place.) m/s (d) If the stone is thrown downward with a velocity of 7 m/s, how long does it take to reach the ground? (Round your answer to two decimal places.) Need Help? Watch It8. [-/1 Points] DETAILS SCALC9 3.9.075. What constant acceleration (in ft/s*) is required to increase the speed of a car from 30 mi/h to 58 mi/h in 4 seconds? (Round your answer to two decimal places.) ft /52 Need Help? Watch It 9. [-/1 Points] DETAILS SCALC9 3.9.076. A car braked with a constant deceleration of 16 ft/s, producing skid marks measuring 50 ft before coming to a stop. How fast (in ft/s) was the car traveling when the brakes were first applied? ft/s Need Help? Watch It 10. [-/1 Points] DETAILS SCALC9 3.9.509.XP. Find f. (Use C for the constant of the first antiderivative and D for the constant of the second antiderivative.) f" (x) = 4 + x3+x A( x ) = 11. [-/1 Points] DETAILS SCALC9 3.9.511.XP. Find f. f"(x) = 48x2 + 2x + 6, f(1) = 2, f'(1) = -2 f( x ) = Need Help? Watch It