A girl swings a ball in a horizontal circular orbit at the end of a massless, 1.25 m long string. If the centripetal acceleration of the ball is equal to g, what is the tangential speed of the ball's orbit? Give your answer in units of m/s. Question 2 10 pts Car 1 accelerates from rest at a rate of 0.366 m/sz. At the moment it begins to move, it is passed by Car 2, traveling at a constant speed of 41.7 m/s. How fast will Car 1 be going when it catches Car 27 Give your answer in units of m/s. Question 3 10 pts A projectile is launched over level ground with an initial velocity of vy = 36.5 m/s at an angle of 22 with respect to the horizontal. What maximum height above the ground does the projectile reach? Give your answer in meters. Question 4 10 pts A =16.1% + 4.73 7 and B=-13.2% + T.56 , what is the smallest positive angle. in degrees, between vectors Aand B