Question

11- CONSERVATION OF UNEAR MOMENTUM IN 2-D Q1)(4) Performing this experiment, you get the following data: Mass of balls 30 g each Before collision: Speed of ball A 5.00 /s After collision: Ball A going at 3.0 m/s at 30 Calculate the speed at which ball B is going. Ball B is stationary. a) 2.40 m/s b) 1.50 m/s c) 2.83 m/s d) 2.05 m/s (1+1+1+1) Circle the correct answers: a) In an elastic collision, Kinetic Energy is conserved b) In an Inelastic collision, Kinetic Energy is conserved c) In an elastic collision, linear momentum is conserved d) In an Inelastic collision, linear momentum is conserved Q2) True / False True / False True / False True / False
Please answer all the questions if possible :) thank you

Answer 1

1) Momentum conservation along x axis gives 30x10 x530x10-3x 3xcos (30) +30x10 yg cos (82) 150x1077.9410+30x10-9 cos(82) 72.06 x10-3-10x10-3Ys cos(4) 2.402 vg cos (e) Along y axis 3xsin (30)-V sin 62 1.5 =Ys sin A (2) (2) by (1) give:s 0.622 tan θ e, -31.98 Gjin (1)gives 2.402 cos (31.98) Ys = 2.83m/ s 1) A) True B) False C) True d) True