Ask Your Teacher   A projectile is launched with an initial speed of 45.0 m/s at an angle of 31.0° above the horizontal. The projectile lands on a hillside 3.80 s later. Neglect air friction. (Assume that the +x-axis is to the right and the +y-axis is up along the page.) (a) What is the projectile's velocity at the highest point of its trajectory? magnitude      m/s direction      ° counterclockwise from the +x-axis (b) What is the straight-line distance from where the projectile was launched to where it hits its target?

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Projectile Motion