An ideal massless spring S can compressed `1.0` m in equilibrium by a force of `100 N`. This same spring is placed at the bottom of a friction less inclined plane which makes an angle `theta =30^@` with the horizontal. A `10 kg` mass `m` is released from the rest at top of the inclined plane and is brought to rest momentarily after compressing the spring by `2.0 m.` the distance through which the mass moved before coming to rest is.

Options

A. both blocks will move with the same acceleration
B. the string will becomes taut (under tension) again when the blocks acquire the same speed
C. the strang wil become taut again when the blocks cover equal distances
D. at the instant when the straing becomes taut again, there may be some exchange of impluse between the string and blocks

Answer

A, C, D