Section III: For problems 12, 13, and 14 use the two equations below. a =v2 r = rFsinθ τ that is 5 m/s and is 2 meters, find v r a? Originally, = 12 m/s2, then is doubled. Find the new value for a r a? Use the second equation to find when = 4 Nm, 2 m, and = 10 N? r = F θ τ Section IV: For problems 15 23, use the equations – K = 1/2mv2 ΔUg = mgh W = F(Δx)cosθ Us = 1/2kx2 P = W/t P=Fvavgcosθ Use the first equation to solve for if = 12 kg and = 2 m/s. K m v If = 10 J, = 10 kg, and = 9.8 m/s2, find using the second equation. m g h ∆Ug = = 9.8 m/s2, and = 10 m. Find K g h v. ∆Ug, The third equation can be used to find if you know that is 10 N, is 12 m, and is 180°. W F ∆x θ
Section III: For problems 12, 13, and 14 use the two equations below. a =v2 r τ = rFsinθ that v is 5 m/s and r is 2 meters, find a? Originally, a = 12 m/s2, then r is doubled. Find the new value for a? Use the second equation to find θ when τ = 4 Nm, r = 2 m, and F = 10 N? Section IV: For problems 15 – 23, use the equations K = 1/2mv2 ΔUg = mgh W = F(Δx)cosθ Us = 1/2kx2 P = W/t P=Fvavgcosθ Use the first equation to solve for K if m = 12 kg and v = 2 m/s. If ∆Ug = 10 J, m = 10 kg, and g = 9.8 m/s2, find h using the second equation. K = ∆Ug, g = 9.8 m/s2, and h = 10 m. Find v. The third equation can be used to find W if you know that F is 10 N, ∆x is 12 m, and θ is 180°.
AP_Physics_I_2015_SummerAssignment_Version_1_key.docx