A 2.6 kilogram block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring.
(a) If the block compresses the spring 5.6 centimeter before coming to rest, determine what the force constant of the spring?
N/m
(b) Determine what initial speed should the block have if it is to compress the spring by 1.5 cm?
m/s