Physics Formulas For Solving Physics Problems This equation can describe velocity or speed. When d represents distance, the equation describes speed. When d represents displacement, vis equal to velocity.: d V : 7. This equation requires constant acceleration to hold This equation describes acceleration, which is the change in velocity, or displacement/ unit time, per unit time. SI units are in m/s^2: a = t true. vis velocity, gis gravitational acceleration (9.8m/s/s) and his height fallen.: dontents. v = 2gh This equation describes an object moving in a circle at a constant speed v which experiences a centripetal acceleration a(c) that is proportional to the square of its speed and inversely proportional to the radius of the circle which is circumscribes.: ac = v2 www.estcnter This equation describes the centripetal force applied an object to give it a certain centripetal acceleration.: latestent co This equation requires constant acceleration to hold true. x is displacement, vis velocity, t is time, and a is the acceleration.: X = Xo + Vot + 2 v2 Fc = m- 10. This equation describes the force due to gravity on two objects of masses m(1) and m(2) at a distance r. Gis the gravitational constant.: www.latest This equation requires constant acceleration to hold true. v is velocity, a is acceleration, and t is time.: V = Vo + at 5. This equation requires constant acceleration to hold true. v is velocity, a is acceleration, x is displacement.: v = v + 2ax This equation requires constant acceleration to hold true. v(avg) is average velocity, v(o) is original velocity, v is current velocity.: Vavg www.lat = om V Vo + 2 F = GM1 m r2 1. This equation is Hooke's law, which describes the force generated when an object is deformed. k is the spring constant unique to the specific object, and x is the displacement from the rest position.: F = -kAx 12. This equation describes the force which acts on an object directly down the plane of an inclined plane when gravity is the only force on that object.: F = mg sin e