Question 1 {9 marks) A 3 .OO-kg mass on a spring vibrates according to the equation, x0) = 0.500 cos (4.50 r + m 3), where x is in meters and r in seconds. Determine the a) amplimde, 1)) frequency, e) total energy, and d) speed of the mass when x = 0.260 m. a) Amplitude: 1 b) Frequency: c) Total energy