A block is attached to spring of force constant K=20N/m and oscillates in a simple harmonic motion. If the period of oscillation is T = 4 s then the mass of the block would be equal?

Two massless springs with spring constants 610 N/m and 116 N/m are hung from a hor- izontal support. A block of mass 6 kg is suspended from the pair of springs, as shown. When the block is in equilibrium, each spring is stretched an additional Ar. Then the block oscillates with an amplitude of 49 m and it passes through its equilibrium point with a speed of 539 m/s. 610 N/m -oooo² 6 kg -0000² 116 N/m What is the angular velocity of this system? The acceleration due to gravity is 9.8 m/s. 1. w = 15 2. w = 2 3. w = 11 rad/s 4. w = 13 5. w = 21 6. w = 16 7. w = 8 X 8. w = 4 9. w = 6 10. = 18

Phy

A cart of mass 206 g is placed on a frictionless horizontal air track. A spring having a spring constant of 10.80 N/ m is attached between the cart and the left end of the track. When in equilibrium, the cart is located 10.0 cm from the left end of the track. If the cart is displaced 5.10 cm from its equilibrium position, find(a) the period at which it oscillates   A cart of mass 206 g is placed on a frictionless horizontal air track. A spring having a spring constant of 10.80 N/ m is attached between the cart and the left end of the track. When in equilibrium, the cart is located 10.0 cm from the left end of the track. If the cart is displaced 5.10 cm from its equilibrium position, find (d) its speed when it is 12.0 cm from the left end of the track.