then speeds up with constant A passenger plane is travelling down the runway with a speed of 20 acceleration for 59 s over 2.4 km. We want to find the final velocity of the plane at the moment of take- off. Which kinematic formula would be most useful to solve for the target unknown? Assume the initial direction of travel is the positive direction. Choose 1 answer: B D v=v0+at - (+) Az- - + 2aAx but + 2 t Stuck? Review related articles/videos or use a hint. Report a problem

A particle is moving in a straight line according to the position function s(1) = 1 - 612 +9t +5, 120, where s is measured in metres and t in se ɔnds. a) Find the average acceleration in the first 3 seconds. b) The particle changes direction twice. When does that happen? c) How far away, from the starting point, is the particle at 1 = 3? d) The particle brakes once. When does that happen? : e) Find the total distance travelled before braking occurs. (*

On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free- fall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 29 m/sm/s at an angle 36 ⁰⁰ above the horizontal. A) How long was the ball in flight? B) How far did it travel? C) Ignoring air resistance, how much farther would it travel on the moon than on earth?

A ball is thrown from an initial height of 4 feet with an initial upward velocity of 29 fus. The ball's height h (in feet) after t seconds is given by the following. h-4+291-167 Find all values of t for which the ball's height is 16 feet. Round your answer(s) to the nearest hundredth. (If there is more than one answer, use the "or" button.) initial height ground - seconds O-O