The purpose of the two studies presented in this paper is to establish validity evidence for the Sport Multidimensional Perfectionism Scale-2 (Sport-MPS-2: Gotwals & Dunn, 2009). Studies 1 and 2 are respectively focused on the production of structurally-related and external validity evidence.
The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.
If the projectile's initial horizontal speed is 55 m/s, then at what angle was it fired? 28. A boulder rolls 35 m down a hill, starting from rest and accelerating at 3.06 m/s 2. The boulder then rolls off a 45 m high vertical cliff, launching at 19.0Â° below the horizontal.or an object thrown at 20 m/s 53Âº above the horizontal, the vertical component of the initial velocity is 20sin53Âº = 16.0 m/s [up], and the horizontal component is 20cos53Âº = 12.0 m/s. Second, break down the problem into two problems: horizontal and vertical. Third, assign-and + signs appropriately.