An arrow is shot straight up in the air at an initial speed of 15.0 m/s. After how much time is the arrow moving downward at a speed of 8.00 m/s? 2 points3.22 s0.714 s2.35 s1.87 s1.24 s

16. A boy spotted a bird on top of a VRA low tention wire. He shot an arrow straight up to hit the bird at an initial speed of 15.0 𝘮/𝘴. If the arrow misses the bird, after how much time is it moving downward at a speed of 8.00 𝘮/𝘴?

An arrow is shot into the air and its height in feet after t𝑡 seconds is given by the function f(t)=−16t2+128t𝑓(𝑡)=−16𝑡2+128𝑡. Estimate the instantaneous velocity at t=1𝑡=1 second using difference quotients with h=0.1ℎ=0.1, 0.010.01, and 0.0010.001. If necessary, round the difference quotients to no less than six decimal places and round your final answer to the nearest integer.

At t = 0, an arrow is fired vertically upwards with a speed of 100 m/s. A second arrow is fired vertically upwards with the same speed at t = 5 s. ThenSelect answersAThe two arrows will be at the same height above the ground at t = 5 s. ThenBThe two arrows will reach back their starting points at t = 20 s and at t = 25 s.CThe ratio of the speeds of the first and second arrows at t = 20 s will be 2 : 1DThe maximum height attained by either arrow will be 1000 m

A car driving on a straight track accelerates at a rate of 3.2 m/s^2 for 14 sec. If the initial velocity of the car was 5.1 m/s, and its initial position was 0 m, what is its final position?385 m32 m-242.2 m -385 m242.2 m

If a car is traveling forward at 15 m/s, how fast will it be going in 1.2 seconds if the acceleration is -10 m/s^2?