Before starting this problem, review Multiple-Concept Example 6. The left ventricle of the heart accelerates blood from rest to a velocity of +26.7 cm/s. (a) If the displacement of the blood during the acceleration is + 1.55 cm, determine its acceleration (in cm/s2). (b) How much time does blood take to reach its final velocity? (a) Number Units (b) Number i UnitsA jetliner, traveling northward, is landing with a speed of 76.8 m/s. Once the jet touches down, it has 764 m of runway in which to reduce its speed to 6.04 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take the direction of the plane's motion as positive). Number UnitsA race driver has made a pit stop to refuel. After refueling, he starts from rest and leaves the pit area with an acceleration whose magnitude is 6.0 m/sz; after 4.5 s he enters the main speedway. At the same instant, another car on the speedway and traveling at a constant velocity of 66.2 m/s overtakes and passes the entering car. The entering car maintains its acceleration. How much time is required for the entering car to catch up with the other car? t= ll "7y A car is traveling at a constant speed of 26.5 m/s on a highway. At the instant this car passes an entrance ramp, a second car enters the highway from the ramp. The second car starts from rest and has a constant acceleration. What acceleration must it maintain, so that the two cars meet for the rst time at the next exit, which is 3.14 km away? Number a Units 4